The Mark II Pilot Balloon Slide Rule was made of wood laminated with heavy white plastic with a length of 24.5-in. and width of 2.5 inches. Mark II rules were manufactured in Australia by W & G (Melbourne). The W & G rule differs only slightly from the English A. G. Thornton LTD rule. The W & G rule uses serif fonts and has some fiducial marks that the English rule lacks. Exact dates of production are not known but the MK II is known to have started production by 1927. The printed scales are engraved in the plastic faces. The slide rule has 4 captive cursors (glass windows and brass guides) that ride in slots on the top and bottom edges. Each can be moved independently of one another. The cursors are missing from this item. Brass knobs at both ends of the slide facilitate its movement. The case is fabric covered wood with felt lining. No known history for this item as located in a property after purchase. The Pilot Balloon slide rule is used to convert the observed azimuth and elevation readings into wind velocity and direction records. The use of slide rules was abandoned with the wide spread adoption of computers and programs to do the calculations, as well as the decline in the use of optical pilot balloon theodolites.Made in Australia by White & Gillespie (Melb) Pty Ltd. Established in 1910, the firm was involved mainly in printing plate manufacture, but during the Second World War it manufactured a variety of navigational aids and range finding devices for the military. About 250,000 instruments were made during that period. After the war the company produced, among other items, drawing instruments and slide rules. The case is fabric covered wood with felt fabric lining containing a long black laminate ruler with numerous white markings and numbers. Top of the ruler is in three sections with the centre section movable by small gold metal knobs at either end. This slide rule contains a engraved notation on the rear face "IMPORTANT. NORMALLY NUMBER OF GRATICULE SCALE DIVISIONS PER RADIAN (K) X LENGTH OF TAIL IN FEET (I) = 12X 105. IN OTHER CASES MULTIPLY GRATICULE READINGS BY 1.2/KI BEFORE CALCULATION ON RULE" Top of Slide Rule - RAAF Ident No G268/480 Serial WG/22pilot balloon slide rule, raaf

Printed as a programme and historical record of the town of Murchison at 150th celebrations in 1990. Cream coloured soft cover, brown printing, aboriginal camp and bullock team and wagon on front cover and a picture of crossing the river in 1860 on the back cover. 4 black and white photographs. 16 pages. Murchison 150th Anniversary 1840 -1990murchison, books, history, 150th celebrations of murchison

Gold linen style paper cover, with title and spine done in green printing on front. 161 pages plus loose sheet.non-fictionflanagan, mulcahy, family history, ellena mulcahy

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 98 pages.Front Cover: 1 / 9 / 9 / 1 / N / A / I / N / O / T / Y / U / R / RECTE ET FIDE LITER /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 98 pages.Front Cover: 2 / 9 / 9 / 1 / N / A / I / N / O / T / Y / U / R / RECTE ET FIDE LITER /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 98 pages.Front Cover: RUYTONIAN / 1993 /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 104 pages.Front Cover: RUYTON GIRLS' SCHOOL / Ruytonian / 94 / RECTE ET FIDE LITER /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 98 pages.Front Cover: RECTE ET FIDE LITER / Ruytonian 1996 /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 99 pages.Front Cover: R / RUYTONIAN / 1997 / R / RECTE ET FIDE LITER /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 100 pages.Front Cover: RUYTONIAN 1998 / the spirit of Ruyton / R / RECTE ET FIDE LITER /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 100 pages.Front Cover: R / RUYTONIAN 1999 /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher

In July 1909, a modest 12-page booklet was put together by members of the fledgling Old Ruytonians Association (ORA) and distributed to the Ruyton Girls' School community. It was one of their first projects, and their aim was to nurture continuing interest in the School among former and current students. They named it "The Ruytonian." At first, The Ruytonian was produced twice yearly, and always bore a plain cover with a simple name banner. Initially, it was the work of volunteer editors from the ORA, but in 1913 they handed the publication over to the first student editors, Esther Gibson and Lucy Tickell. Since that time, the style and content of The Ruytonian has continuously evolved. The biggest shifts occurred in 1942 when it transitioned to a yearly publication, and in 1969 when it moved to a larger A4 format with a cover image specifically selected for that year.The record has strong historic significance as it pertains to the fourth oldest girls' school in Victoria, Australia. Ruyton was founded in 1878 in the Bulleen Road, Kew, home of newly widowed Mrs Charlotte Anderson (now High Street South). Thus, the record can be used as a reference example for research into Victorian school history. The record's significance is further enhanced by its exceptionally well-documented provenance, having remained the property of Ruyton Girls' School since its production.Colour publication printed on white paper. 100 pages.Front Cover: RUYTONIAN 2000 /ruyton girls' school, the ruytonian, kew, old ruytonians association, yearbook, school, publication, girls school, junior school, senior school, journal, students, teacher