This Day or Night telescope, made by John Dollond, was designed for use in a range of lighting conditions, as its name suggests. Telescopes are optical instruments that make distant objects appear larger and closer, thereby extending the range of what the human eye can observe. The development of the telescope was gradual, shaped by a series of important advances in optical science. In 1608, the Dutch spectacle-maker Hans Lippershey discovered that when two lenses were held apart in a particular way, distant objects appeared closer. He applied for a patent for this invention, creating the first documented telescope. In 1668, Isaac Newton produced the first successful reflecting telescope, using a two-inch concave spherical mirror. This marked a major step forward, demonstrating that mirrors could overcome some of the limitations of lenses and greatly improve magnification. Further progress followed in the eighteenth century. In 1729, Chester Moor Hall developed the achromatic lens by combining two types of glass with different refractive properties. This reduced colour distortion and produced a sharper image, although some edge distortion remained. That same year, the Scottish instrument maker James Short developed parabolic and elliptical mirrors that were better suited to reflecting telescopes because they reduced optical distortion. Building on these advances, John Dollond improved the achromatic objective lens by placing a concave flint-glass lens between two convex crown-glass lenses, considerably enhancing image quality. Maker’s information. John Dollond (1707–1761), of London, was a maker of optical, scientific and astronomical instruments best known for developing the achromatic refracting telescope. He also introduced a practical heliometer, a telescope fitted with a divided lens that could be used to measure the Sun’s diameter and the angular distance between celestial bodies. The son of Huguenot refugees, Dollond first learned the family trade of silk weaving before turning his attention to optics and astronomy, in which he became highly skilled. In 1753, Dollond patented his improved lenses, the same year he had introduced the heliometer. In 1761, John Dollond was appointed as optician to George III and the Duke of York. He was also elected a Fellow of the Royal Society in May 1761, but died suddenly later that year in November. His share of the patent then passed to his eldest son, Peter. In later disputes between Peter Dollond and rival London opticians who challenged the patent, Peter consistently argued that, whatever earlier precedents may have existed, his father had independently developed a practical method for producing achromatic lenses through his command of Newtonian optics. By successfully defending the patent, the Dollond firm became one of the leading manufacturers of optical instruments. During the eighteenth and nineteenth centuries, the name ‘Dollond’ was at times used almost generically to mean ‘telescope,’ reflecting the firm’s reputation. Genuine Dollond telescopes were regarded as among the finest available. Peter Dollond (1731–1820) was the driving force behind the family business. He had founded a small optical business in 1750 on Vine Street, Halton Garden, with his father's guidance. The success of the business led to his father joining him in partnership in 1752. In 1959, J Dollond and Son opened a shop on The Strand, London. Dollonds appear to have produced both reflecting and refracting telescopes, and they possessed the technical skill to manufacture significant numbers of lenses largely free from chromatic aberration. In 1766, Peter went into partnership with his younger brother, John, and they traded under the name P and J Dollond. They supplied optical instruments for Captain Cook and George Hadley, an English lawyer and Meteorologist. In 1769, Captain Cook travelled with a Dollond telescope on the voyage to observe the Transit of Venus. Other notable customers included Thomas Jefferson and Admiral Lord Nelson. In 1781, Peter Dollond made bifocal spectacles. In 1804, young John Dollond passed away. The following year, Peter Dollond went into partnership with his nephew, George Huggins, and Huggins legally changed his surname to Dollond, and the firm remained P and J Dollond. In the early 20th century, the company sold film cameras. The firm remained in the hands of Dollond family members until 1927, when Dollond & Co. merged with James Aitchison & Co. to form Dollond & Aitchison, the well-known high street chain of opticians, which continued making and selling prescription spectacles. Now fully part of Boots Opticians, the company no longer manufactures instruments and operates exclusively as a retail business. The telescope in the collection is an excellent example of one of Dollond’s early library telescopes. Its association with one of eighteenth-century England’s leading innovators in optical development gives it considerable historical significance and makes it an important object within the collection. John Dollond’s experiments in optics advanced the understanding of the divergent properties of lenses and made a lasting contribution to the development of practical optical science. His work helped lay the foundation for major improvements in the design and performance of optical instruments. In his own time, Dollond was celebrated as the “Father of practical optics” and received widespread recognition for his achievements in the field. Dollond telescopes were associated with the renowned mariners, Captain James Cook and Admiral Lord Nelson Telescope: Dollond's Telescope, Day or Night model navigational instrument. Telescope is mounted on wooden tripod stand that has folding legs. Brass telescope with leather sheath over barrel, adjustable angle fitting with brass wing nuts that join the legs to the top frame, which is then joined to the telescope pole by an adjustable screw fitting. Manufactured by Dollond, London. Inscription reads "Dollond London, Day or Night" and "DOLLOND LONDON"flagstaff hill maritime museum and village, maritime museum, maritime village, great ocean road, warrnambool, optical instrument, achromatic telescope, heliometer, light refraction, instrument maker, lens, transit of venus, astronomical telescope, concave lens, scientific instrument, navigation, navigational instrument, astronomy, dollond, dollond london, john dollond, peter dollond, dollond telescope, day or night telescope, floor-standing telescope, library telescope, hans lippershey, isaac newton, chester moor hall, james short, captain cook, thomas jefferson, admiral lord nelson, dollond & co, aitchison & co, dollond & aitchison, boots opticians, george iii, duke of york, george huggins, george dollond, p and j dollond, j dollond and son, spectacles, cameras

This telescope was used at the Ballarat School of Mines, and used to be located on the roof of the Ballarat Technical Art School (Gribble Building) at the Ballarat School of Mines. The telescope was reconditioned by former staff member Graeme Hood. Black telescope with 9 inch mirror and large counterweight. On the back of the mirror are the following words "G M Riley Sunshine 1922"telescope, observatory

In 1884 the Ballarat School of Mines Council reserved a three acre site on a spur of the White horse Ranges known as Mount Pleasant. The Vice-President of the Ballarat School of Mines, James Oddie undertook at his own expense (said to be 4,000 pounds) to erect and equip the observatory. By 1886 seven rooms, a workshop and a cottage had been erected. The first large telescope built in Australia, the Baker Telescope, opened 1888. In 1913 the Council of the Ballarat School of Mines handed over the Observatory to the Ballarat East Town Council. A number of images as depicted in a newspaper. The top image shows the Carlver Equitorial Telescope. Middle left is a stained glass window at the observatory (donated by the Ballarat Courier), middle right is 'fire mist'; lower left shows Saturn, and lower right is 'in pleiades'.ballarat observatory, telescope, stained glass window, jelbart telescope, equalateral telescope, meterological apparatus, john brittain

An octant is an astronomical instrument used in measuring the angles of heavenly bodies such as the sun, moon and stars at sea in relation to the horizon. This measurement could then be used to calculate the altitude of the body measured, and then the latitude at sea could also be calculated. The angle of the arms of an octant is 45 degrees, or 1/8 of a circle, which gives the instrument its name. Two men independently developed the octant around 1730: John Hadley (1682–1744), an English mathematician, and Thomas Godfrey (1704–1749), a glazier in Philadelphia. While both have a legitimate and equal claim to the invention, Hadley generally gets the greater share of the credit. This reflects the central role that London and the Royal Society played in the history of scientific instruments in the eighteenth and nineteenth century's. There were also two others who are attributed to having created octanes during this period, Caleb Smith, an English insurance broker with a strong interest in astronomy (in 1734), and Jean-Paul Fouchy, a mathematics professor and astronomer in France (in 1732) In 1767 the first edition of the Nautical Almanac tabulated lunar distances, enabling navigators to find the current time from the angle between the sun and the moon. This angle is sometimes larger than 90°, and thus not possible to measure with an octant. For that reason, Admiral John Campbell, who conducted shipboard experiments with the lunar distance method, suggested a larger instrument and the sextant was developed. From that time onward, the sextant was the instrument that experienced significant development and improvements and was the instrument of choice for naval navigators. The octant continued to be produced well into the 19th century, though it was generally a less accurate and less expensive instrument. The lower price of the octant, including versions without a telescope, made it a practical instrument for ships in the merchant and fishing fleets. One common practice among navigators up to the late nineteenth century was to use both a sextant and an octant. The sextant was used with great care and only for lunar sightings while the octant was used for routine meridional altitude measurements of the sun every day. This protected the very accurate and pricier sextant while using the more affordable octant for general use where it performs well. The invention of the octant was a significant step in providing accuracy of a sailors latitude position at sea and his vessels distance from land when taking sightings of land-based landmarks.Octant with metal handle, three different colored shades are attached, in wooden wedge-shaped box lined with green felt. Key is attached. Two telescope eyepieces are in box. Some parts are missing. Oval ink stamp inside lid of box, scale is graduated to 45 degrees. Ink stamp inside lid of box "SHIPLOVERS SOCIETY OF VICTORIA. LIBRARY"instrument, flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, octant, navigation, nautical instrument, navigation instrument, john hadley, sextant, astronomical instrument

The discovery of the first telescope in 1608 can be attributed to Hans Lippershey of the Netherlands when he discovers that holding two lenses up some distance apart bring objects closer. He applies for a patent on his invention and this becomes the first documented creation of a telescope. Then in 1668, Newton produces the first successful reflecting telescope using a two-inch diameter concave spherical mirror. This opened the door to magnifying objects millions of times far beyond what could ever be obtained with a lens. It wasn’t until 1729 that Chester Moor Hall develops an achromatic lens (two pieces of glass with different indices of light refraction combined produce a lens that can focus colours to almost an exact point resulting in much sharper images but still with some distortion around the edges of the image. Then in 1729 Scottish instrument maker James Short invents the first parabolic and elliptic, distortion-less mirror ideal for reflecting telescopes. We now come to John Dollond who improves upon the achromatic objective lens by placing a concave flint glass lens between two convex crown glass lenses. This had the effect of improving the image considerably. Makers Information: John Dollond (1707-1761) London England he was a maker of optical and astronomical instruments who developed an achromatic (non-colour distorting) refracting telescope and practical heliometer. A telescope that used a divided lens to measure the Sun’s diameter and the angles between celestial bodies. The son of a Huguenot refugees Dollond learned the family trade of silk weaving. He became proficient in optics and astronomy and in 1752 his eldest son, Peter joined his father in an optical business, in 1753 he introduced the heliometer. In the same year, he also took out a patent on his new lenses. He was elected a fellow of the Royal Society in May 1761 but died suddenly in November and his share in the patent passed to his son Peter. In subsequent squabbles between Peter and the many London opticians who challenged his patent, Peter’s consistent position was that, whatever precedents there may have been to his achromatic lenses, his father had independently reached his practical technique on the basis of his theoretical command of Newtonian optics. As a result of maintaining his fathers patent, Dollond s became the leading manufacturer of optical instruments. For a time in the eighteenth and nineteenth century the word 'Dollond' was almost a generic term for telescope rather like 'Hoover; is to vacuum cleaner. Genuine Dollond telescopes were considered to be amongst the best. Peter Dollond (1731-1820) was the business brain behind the company which he founded in Vine Street, Spitalfields in 1750 and in 1752 moved the business to the Strand London. The Dollonds seem to have made both types of telescopes (reflecting and refracting), possessing the technology to produce significant numbers of lenses free of chromatic aberration for refracting telescopes. A Dollond telescope sailed with Captain Cook in 1769 on his voyage to observe the Transit of Venus. Thomas Jefferson and Admiral Lord Nelson were also customers of the Dollonds. Dollond & Co merged with Aitchison & Co in 1927 to form Dollond & Aitchison, the well-known high street chain of opticians, now fully part of Boots Opticians. They no longer manufacture but are exclusively a retail operation.    John Dollond's experiments in optics and how different combinations of lenses refract light and colour gave a better understanding of the divergent properties of lenses. That went on to inform and pave the way for the improvement of our understanding of optics that are represented today. Dollond was referred to in his time as the "Father of practical optics" as a leader in his field he received many prestigious awards. The telescope in the collection is a good example of one of Dollonds early library telescopes and its connection with one of England's 18th-century pioneers in optical development is in itself a significant and an important item to have within the collection. Telescope: one tube ships Day and Night telescope, with a brass inner tube and a timber main tube covered in leather. Made in 1869 by Dolland, London."Dolland London" "Day or Night" "Royal National Life Boat Institution" "1869"flagstaff hill, shipwreck coast, warrnambool, maritime museum, maritime village, telescope, dolland, night and day, royal national life boat instution

W.H. Wooster was associated with the Ballarat Observatory. .1) Photograph of W.H. Wooster with the telescope at the Ballarat Observatory. .2) Head and shoulders of W.H. Woosterballarat observatory, observatory, wooster, w.h. wooster, portrait, mount pleasant

A magazine supplement of the Ballarat Courier containing articles, images and advertisement. Images include: St Patrick's Day March, Eight Hour Day procession Advertisements include: Morris undertaker, Olivers, Miller, Hanrahan's Hotelst patrick's day, ballarat townscape, st patrick's day parade, ballarat st patrick's day parade, ballarat courier, hanrahan, morris, labour day, 8 hour day, eight hours day procession, st patrick's day procession, mrs captain ellis, picture palace, grenville college, berry united company ullina, lewis s. smith architect, bolster brothers, buninyong butter factory, aquatic carnival, george e. deeble machinery, cape nelson portland, jelbarts, jelbart's telescope, lin hillman, presbyterian church snake valley, miss a.m. abrams, berry anderson and co, j.a. reynolds, maypole, w.f. coltman, ballarat boot palace, ben nevis elmhurst, jonathan reeve, victorian producers co-operative, r.u. nicholls, f.w. barnes and son, ballarat steam laundryballarat water reserves, yarra river warburton, erskine river lorne, john bray, eden studios, lake wendouree

Hardcovered book, half leather bound with marbled paper. Formerly book number 4040 from the Ballaarat East Public Library. Contents include: new pit-saw, self-moving carriage (car), Lord Worcestor's steam engine, extinction of fires, Cameron's Soda Water Apparatus, Newton's Lectures on Astronomy, coining at the Royal Mint, mechanical geometry, lifting ships by steam, voltaic-mechanic agent, steam navigation, portable hand-mill, Brown's pneumatic engine, Bell's invention for saving lives from shipwreck, triple pump, cycloidal chuck, potato-washer, sand clock, Galvanic electricity, perpetual motion, Hadley's Quadrent, Wollaston's Night-Bolt, rope bridges, boring machinery, locomotive steam-engines, new London Bridge, naval architecture, steam and water wheel, Spencer's Patent Forge, boat with wings, ivory profile portraits, Jenning's Gas burner, Ramage's Telescope, washing machine, tallow lamp, iron masts, self regulating pendulum, prismatic compass, simple blowpipe. Includes image of Henry Brougham, and many drawings of inventions.non-fictioncar, newton, fire, shipwreck, bell, naval architecture, locomotive, ballaarat east public library, ballarat east public library, ballarat east library, henry brougham, potassium, meridian lines, pit saw, self moving carriage, lord worcestor, steam engine, cameron s, soda water, astronomy, royal mint, mechanical geometry, lifting ships by steam, voltaic mechanic agent, steam navigation, hand mill, brown s pneumatic engine, triple pump, cycloidal chuck, potato washer, sand clock, galvanic electricity, perpetual motion, hadley s quadrent, wollaston s night bolt, rope bridges, boring machinery, steam engines, new london bridge, steam and water wheel, spencer s patent forge, boat with wings, ivory profile portraits, jenning s gas burner, ramage s telescope, washing machine, tallow lamp, iron masts, self regulating pendulum, prismatic compass, simple blowpipe, bookplate

William Spencer and Samuel Browning's were in partnership from 1778 to 1781. When Ebenezer Rust joined the partnership of Spencer and Browning in 1784, the firm of Spencer, Browning & Rust was created. All of the original partners of Spencer, Browning & Rust had died by 1819. The firm was succeeded by Spencer, Browning & Co. in 1840, following the 1838 death of Ebenezer Rust, Junior, son of the original partner. The successor company was in business until 1870.A monocular telescope in a tapered brass tube, with the middle two thirds coved with dark-brown leather. The eye piece end in telescopic, and is probably an add on. 83 cm long, 6.5 cm diameter at large end, 4.0 cm diameter at eyepiece end. Probably magnification is 1 7/8 inch. 48 mm focal depth of c79cm.telescope, scientific instrument, observatory, ballarat observatory, james oddie, ballarat boys' telescope company, spencer browning and co., astronomy

An image of W.H. Wooster with telescope, and a page copy of his handwritten notes outlining his achievements.7707.2 "Notes Grandpa has lectured scores of times in the Sch. of Mines, sometimes for one of the Professors who was ill. Also Lectured in the City Fire Brigade, Ballarat E Fire Brigade, Barkley St Wesn chap., Lydiard St. Wes. Chapl, St Peter's Church of England, Mt Pleasant Wes. Chapl., Baptist Church; & many other places. Preached i the Neil St. Wes. Chapels at Brown Hill, the Gong, Ltl Bendigo, Golden Point, Macarthur St., Mnt Pleasant, the Bible Christian Chppl., and many others. Too photos of most of the places shown in these "Ballarat Views", and many others. And laid the Foundation of the fine Municipal Observatory, in a long series of "Astronomical" and other "Scientific Notes", published in the Ballarat Courier and Ballarat Star, & occasionally in another Newspaper, which roused much public interest in Astronomy. The present official astronomer, Mr John Brittain, is my pupil in Astronomy and Microscopy, and calls me his Father in Science. W.H. Wooster."w.h. wooster, ballarat observatory, microscope, microscopy, churched, preaching, lay preacher, ballarat school of mines, ballarat field naturalists club, observatory, telescope

27 June 1902 - Davey Paxmen Steam Engine 01 September 1905 - James Oddie donation a pair of lanterns and a lantern Microscope 03 August 1906 - Costs of starting an Agricultural High School in the district - Dr Stewart Bequest 29 April 1910- Planning for new Art School Building 28 April 1911 - Ballarat Observatory 26 May 1911 - Ballarat Observatory. Mr Brittain living in the caretaker's cottage, and proposes moving his telescope to the observatory 30 June 1911 - H.H. Smith in conjunction with Mr Clegg asked to prepare sketch plans for a new art school 28 July 1913 - Establishment of the Ballarat Junior Technical School 04 April 1913 - Removal of organ and pipes from the former Wesleyan Church 26 June 1914 - Laying of the Foundation Stone for the Ballarat Technical Art School. A photograph was taken featuring Mr Tate, Mr Carew-Smyth and Col. Watson.Black covered foolscap book with brown leather spine and corners. The handwritten reports were written for the Ballarat School of Mines Councilballarat school of mines, monthly reports, ballarat school of mines principal, ballarat school of mines principal's report, ballarat school of mines battery, ballarat school of mines council, r.t. vale, davey paxmen, andrew anderson, james bickett, james oddie, david kerr, j. baird, learmonth, dr stewart bequest, ballarat technical art school, h.h. smith, w.h. middleton, clegg

The Ballarat Observatory is situated at Mount Pleasant.Correspondence relating the the Ballarat Observatory. .1) Robert J. Strange, Secretary of the Ballaarat Astronomical Society, writes to E.J. Barker (Principal, Ballarat School of Mines) regarding ownership of telescopes. .2) E.J. Barker (Principal, Ballarat School of Mines) writes to Bert Strange concerning ownership of telescopes .3) Bert Strange writes to Jack Barker with details of the telescopes, including references to James Oddie. The telescopes in question were three Newtonian reflectors, one Cassegrainian focus reflector and one "Calver" telescope on altazimuth mounting. .4) Former Ballarat School of Mines Principal, Dick Richards, writes to Jack Barker regarding the telescopes. Mention is made of John Brittain's ten inch mirror on a metal tube, stored on the penthouse on the roof of the Art School. .5) Ballarat School of Mines librarian, Heather Durant, writes to Jack Barker . .6) Simple timeline relating to the Ballarat School of Mines .7) Extracts for the Ballarat School of Mines Annual Reports relating to the Ballarat Observatory, the James Oddie donation, and the transfer of the Observatory to the Ballarat East Town Council. 8)Two quarto typed pages from Jack Barker to Bert Strange outlining the research undertaken to report that the telescopes were not in the possession of the Ballarat School of Mines. ballarat school of mines, jack barker, e.j. barker, ballarat observatory, bert strange, robert f. strange, telescopes, dick richards, r.w. richards, heather durant, mount pleasant, mt pleasant

Theodolite with internal focussing. One plate bubble level. Three levelling screws. Engraved. "Crosshair" and stodia lines. Aladide levelling bubble with top mirror. Fully rotatable telescope with gunsight. Fits tripod Catalogue Number 4107.scientific instruments, theodolite, e.r. watts & son ltd

Probably made and used by Dick Richards, who lectured in Physics at the Ballarat School of Mines, and later became the principal. Earlier Dick Richards had been a member of Shackleton's Antarctic Exploration Expedition. A 15cm diameter glass disc, 2.3 cm thick. ONe side is ground concave to 7'=5" (s s7 cm) radius. Rough-hewn circumference. Stored between a pair of 5cm thick 16 x 20 pieces of polystyrene slab, hollowed to accomodate mirror.scientific instruments, mirror, telescope mirror, dick richards, r.w. richards

Surveying level - long bubble level on top. Magnet, compass under telescope. No crosshairs. External focussing. Four levelling screws. No transverse level. Housed in a polished timber storage box. Fits tripod Catalogue Number 429.scientific instruments, level, dumpy

October inwards correspondence for the Ballarat School of Mines. * School of Mines and Industries, Bendigo (certification of Mine Managers) * Telegram - examination papers * Commonwealth telegram - Ballarat School of Mines battery availability for crushing ten tons. * Letterhead from the Roneo Co., Melbourne * J. Donald of Wallace St, Toorak * Letterhead from York Chambers, 49 Queen Street, Melbourne - signed J. Kaufmann * Letterhead from Cochran & Co - re Cocnran boilers * Letterhead of Thames School of Mines, New Zealand * Letter re James Chambers missing school from his father James Chambers Snr of Talbot * Education Department Circular * letter signed by F.W. Calaby * F.W. Silberberg & Co re crucibles * Letterhead of New Black Horse Mining Company - signed E. Howell * Australasian Institute of Mining Engineers, 57-59 Swanston Street, Melbourne - signed D.L. Stirling * Letterhead of John F. Paterson * Letterhead of the Welcome Stranger Dredging Company, Dunolly - W.J. Parker manager * Letterhead of Nevett and Nevett Barristers and Solicitors, Lydiard Street, Ballaarat * John Barker, H. Barbour * Telegram re Brearley Lyndhurst * Letterhead of the Commonwealth Minerals Co - John F. Paterson, Legal Manager * Query re courses at the Ballarat School of Mines - A. O'Mara * Stone to be crushed, Egerton from J.H. Davidson * Letterhead from 'Terascoa' Port Kembla signed by W.S. Macartney * Letter from Thomas Williams * Letterhead from Australian Institute of Mining Engineers regarding excursion to Toongabbie and Walhalla - Signed D.L. Stirling * Assay from George Brearley of Lyndhurst via Scottsdale * Letterhead of Berry United Deep Leads Limited, Ulina * Embossed leather classes for coachwork from S. Mee of Clunes * The Lord Nelson North Gold Mning Company No Liability signed by Edward H. Shackell * Correspondence from May Consolidated Gold Mining Company, Transvaal signed by Jason Hawthorne * Letterhead of the Northern Assurance Company, 448 Collins St, Melbourne * Letter fom James Lidgett of "Braelands" Myrniong * Gordon sides asking for a reference * Letterhead of Fraser & Chalmers Ltd, Manufacturersw of mining machinery, steam engines, boilers and machinery for systematic milling, smelting and concentration of ores, signed by W.R. Caithness * Letterhead of the Board of Examiners for Engine-Drivers, signed by R. Birrell * Letter concerning outstanding amount due to theBallarat East School of Design, signed by Edward Reid, Manager * Letterhead of the Ballarat Public Library concerning an outstanding amount in the School of Design Account. * Letterhead of the A. Gallenkamp and Co. regarding their new catalogue * Letterhead from the Creswick Advertiser, Albert Street, Creswick * Handwritten letter from John Brittain inviting Ballarat School of Mines students to join him at the telescope weather permitting * Letterhead of Victorian Railways, signed by E.B. Jones * Letterhead of the Ballarat East Town Clerk's Office * Letterhead of Elliott, Maclean and Co. Handwritten letter re Dressmaking from J.H. Wrightrand, south africa, kalgoorlie, school of mines and industries, bendigo, certification of mine managers, bendigo school of mines, telegram, ballarat school of mines battery, roneo co., melbourne, j. donald, york chambers, cochran & co, thames school of mines, new zealand, james chamberseducation department circular, f.w. calaby, * f.w. silberberg & co, crucibles, new black horse mining company, e. howell, * australasian institute of mining engineers, john f. paterson, welcome stranger dredging company, dunolly, w.j. parker, nevett and nevett, john barker, h. barbour, brearley lyndhurst, commonwealth minerals co, a. o'mara, j.h. davidson, 'terascoa' port kembla, w.s. macartney, thomas williams, australasian institute of mining engineers, excursion, toongabbie, walhalla, d.l. stirling, george brearley, lyndhurst via scottsdale, berry united deep leads limited, ulina, embossed leather classes for coachwork, s. mee, clunes, the lord nelson north gold mning company no liability, edward h. shackell, may consolidated gold mining company, transvaal, jason hawthorne, northern assurance company, james lidgett, "braelands" myrniong, gordon sides, fraser & chalmers ltd, mining machinery, w.r. caithness, examiners, ballarat east school of design, edward reid, ballarat public library, school of design, a. gallenkamp and co., creswick advertiser, john brittain, telescope, victorian railways, e.b. jones, ballarat east town clerk's office, elliott, maclean and co., dressmaking, j.h. wright, ausimm, berry united, school of mines and industries bendigo, lyndhurst tasmania, may consolidated gold co germiston transvaal, transvaal, germiston, roneo, thames school of mines, schools of mines, welcome stranger dredging co, cowley copper development syndicate ltd, department of mines, maryborough school, pharmacy board of victoria, tongalla survey camp, ballarat fine art gallery association, central microscopical

Used for surveying classes at the Ballarat School of Mines.Telescope with cross hairs and stoidia wites. Internal focussing. Vertical tilt adjusted with vernier mocrometer screw mirror lid longitudinal bubble level. Pea bubble level on plate. Housed in wooden storage carry box. Fits tripod cat. no. 4118Serial number 67543 On box lid in white paing "L 6". In yellow paing "59". Inside box lid - Manufacturers label; grades table label, calibration label reading "instrument No 67 543, date 13.5.50" (ink faded) constant: +0.19 ft"dumpy, level, surveying, scientific instrument, e.r. watts & son ltd, ballarat school of mines