This book belonged to Brigadier FD Buckland OBE Director of Survey Land HeadquarterHardcover, light blue, 819 pages, text, diagrams, photographsroyal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt, asr, photogrammetry

This is a set of 14 photographs of RA Svy technicians operating photogrammetric equipment in Air Survey Squadron, Army Survey Regiment, Fortuna, Bendigo; and the School of Military Survey Bonegilla c1960s to c1980s. The Wild B9 stereo plotter were introduced in 1962 and the Wild B8 stereo plotter was introduced in 1966. The Wild B9 and B8 stereo plotters were used for plotting topographic detail and contours. These analogue machines were manually controlled by adjusting the control knobs for the orientation of the 3D image. The B9s used a four and a half square, and the B8s used a nine-inch square photo image on a film or glass diapositive which allowed highly accurate extraction of map features. At first, plotting with B8 and B9 stereo plotters was undertaken at the aerial photography scale of 1:80,000 in pencil onto a controlled plotting sheet. Sheets were then inked up and reduced photographically to the 1: 100,000 publication scale for scribe impression production. In the early days topographic detail and contours were plotted with a pencil or ink pen mounted at the far end of the pantograph arm. The plotting procedure was upgraded to direct plotting in ink with photographic reduction to publication scale. In 1975 four B8s were upgraded with tri-axis locaters as part of the Input Sub-system to enable digital extraction to AUTOMAP 1’s topographic database. When AUTOMAP 2 was introduced in 1982 these B8s were upgraded, and additional machines added to expand the Army Survey Regiment’s digital capture capability. There are several more photos catalogued in the Victorian Collections database of RA Svy personnel operating Wild B9 and B8 stereo plotters.Photogrammetric Equipment – Army Survey Regiment, Fortuna, Bendigo c.1981. . .7) – Unidentified technician operating Wild B8 stereo plotter in AUTOMAP 1 at ASR. .8) - Wild B8 stereo plotter in AUTOMAP 1 at ASR. Photogrammetric Equipment – Army Survey Regiment, Fortuna, Bendigo. c1981. .9) – ASR’s CPL Dave Cook in AUTOMAP 1 operating a Wild B8 stereo plotter. This is a set of 14 photographs of RA Svy technicians operating photogrammetric equipment at the Army Survey Regiment (ASR), Bendigo and the School of Military Survey (SMS) Bonegilla. c1960s to c1980s. The photographs are on 35mm colour slides and were scanned at 96 dpi. .1) - Photo, colour, c1964. Unidentified ASR technicians operating analogue Wild B9 stereo plotters. .2) - Photo, colour, c1974. ASR’s SPR Mick Minchin operating an analogue Wild B8 stereo plotter. .3) to .6) - Photo, colour, c1980. Photogrammetry Instructor SGT Neil ‘Ned’ Kelly at the SMS operating an analogue Wild B8 stereo plotter. .7) - Photo, colour, c1981. Unidentified technician operating Wild B8 stereo plotter in AUTOMAP 1 at ASR. .8) - Photo, colour, c1981. Wild B8 stereo plotter in AUTOMAP 1 at ASR. .9) to .14) - Photo, colour, c1981. ASR’s CPL Dave Cook in AUTOMAP 1 operating a Wild B8 stereo plotter..1P to .14P - Some of the equipment is annotated on the frame of the 35mm slides.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, photogrammetry

This is a set of five photographs of Multiplex mechanical stereoplotting equipment at the Army Survey Regiment, Fortuna Bendigo. c1950s. Multiplex equipment was imported from the UK in 1951 and introduced in the following year, to accelerate map production output covering CMF training areas at 1:25,000 map scale. Multiplex plotting was a productive advancement replacing the ‘Arundel’ method of graphical plotting planimetric detail that was expensive and slow, especially in timbered mountainous terrain. Air photos were made into small diapositives and mounted on racks in the exact position relative to when the aerial photos were taken. The technicians operated the Multiplex in a darkened room, with one photo projected with a green filter and the other through a red filter to form a 3D view of the overlapping photos. The 3D model projected onto a platen, which was a small platform that was raised up and down. The technician viewed the 3D image with special glasses fitted with red and green lenses. In the centre of the platen was a small pinhole that served as a floating mark, with a vertical pencil located exactly below the pinhole. This tracing table was moved to follow the topographic feature or contour line and draw it on the paper underneath. The technician raising or lowering the platform’s floating mark to match the height of the 3D terrain. It also replaced the slotted template method of mechanical adjustment of strips of aerial photography, however was restricted to each strip rather than between strips in the block. Although the Multiplex was phased out of production in 1968, it was used in the training of photogrammetry and aero-triangulation at the School of Military Survey located at Bonegilla, Victoria until the early 1990s. The history of the Multiplex is covered in more detail with additional historic photographs, in pages 50 to 51 of Valerie Lovejoy’s book 'Mapmakers of Fortuna – A history of the Army Survey Regiment’ ISBN: 0-646-42120-4.This is a set of five photographs of Multiplex mechanical stereoplotting equipment at the Army Survey Regiment, Fortuna, Bendigo. c1950s. The photographs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographs were scanned at 300 dpi. .1) - Photo, black & white, c1950s, unidentified personnel operating Multiplex equipment. .2) - Photo, black & white, c1950s, Multiplex equipment. .3) - Photo, black & white, c1950s, Multiplex components identified. .4) - Photo, black & white, c1950s, Multiplex optical components. .5) - Photo, black & white, c1950s. Unidentified technician laying down individual Multiplex plots..1P to .2P, .4P – No annotations. .3P annotations identifying Multiplex components on front of photo. .5P annotated on front ‘Lay down of individual Multiplex plots at 1/14000 to framework of master grid to form Composite Compilation Sheet – Material Duralex.’royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, photogrammetry

This is a set of two photographs of Air Survey Squadron technicians - LCPL Peter Murphy and SPR Rachel (Stanford) Scott capturing topographic features with a Wild B8 stereo plotter with AUTOMAP 2 equipment at the Army Survey Regiment, Fortuna, Bendigo, c1990. Refer to item 6185.4P and 6204.8P for detailed information and additional photographs of the Wild B8 stereo plotter. The history of the AUTOMAP 2 system is covered in more detail with additional historic photographs in pages 119, 137-142 and 180 of Valerie Lovejoy’s book 'Mapmakers of Fortuna – A history of the Army Survey Regiment’ ISBN 0-646-4: 2120-4. See items 6087.10P and 6223.23P for additional photographs of the AUTOMAP 2 system.This is a set of two photographs of Air Survey Squadron technicians capturing topographic features with a Wild B8 stereo plotter with AUTOMAP 2 equipment at the Army Survey Regiment at Fortuna, Bendigo, c1990. The photographs are on 35mm negative film. They are part of the Army Survey Regiment’s Collection. The photographic negatives were scanned at 96 dpi. .1) - Photo, colour, 1990. LCPL Peter Murphy operating a Wild B8 stereo plotter. .2) - Photo, colour, 1990. SPR Rachel (Stanford) Scott operating a Wild B8 stereo plotter..1P to .2P – no annotationsroyal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, photogrammetry

This is a set of eight photographs of technicians operating photogrammetric equipment in Air Survey Squadron, Army Survey Regiment, Fortuna, Bendigo. c1960s to c1980s. The Wild A9 Stereocomparator and Wild B9 stereo plotter were introduced in 1962. The Wild B8 stereo plotter was introduced in 1966. Technicians used the Wild A9 Stereocomparator to accurately measure between pass, tie, and survey control points on aerial photographs. The Wild B9 and B8s were used for plotting topographic detail and contours. These analogue machines were manually controlled by adjusting the control knobs for the orientation of the 3D image. The B9s used a four and a half square, and the B8s used a nine-inch square photo image on a film or glass diapositive which allowed highly accurate extraction of map features. At first, plotting with B8 and B9 stereo plotters was undertaken at the aerial photography scale of 1:80,000 in pencil onto a controlled plotting sheet. Sheets were then inked up and reduced photographically to the 1: 100,000 publication scale for scribe impression production. In the early days topographic detail and contours were plotted with a pencil or ink pen mounted at the far end of the pantograph arm. The plotting procedure was upgraded to direct plotting in ink with photographic reduction to publication scale. In 1975 four B8s were upgraded with tri-axis locaters as part of the Input Sub-system to enable digital extraction to AUTOMAP 1’s topographic database. When AUTOMAP 2 was introduced in 1982 these B8s were upgraded, and additional machines added to expand the Army Survey Regiment’s digital capture capability. This is a set of eight photographs of technicians operating photogrammetric equipment in Air Survey Squadron, Army Survey Regiment, Fortuna, Bendigo. c1960s to c1980s. Black and white and colour photos are on photographic paper and scanned at 300 dpi. .1) - Photo, black & white, c1965. Unidentified technician operating a Wild A9 Stereocomparator. .2) - Photo, black & white, c1965. Unidentified technician operating a Wild B9 stereo plotter. .3) - Photo, black & white, c1967. L to R: Unidentified technician, SPR Ken Jeffery operating a Wild B9 stereo plotter. .4) - Photo, colour, c1974. Unidentified technician, operating a Wild B8 stereo plotter. .5) - Photo, black & white, c1974. Unidentified technician operating a Wild B8 stereo plotter. .6) to .7) - Photo, black & white, c1979. Unidentified technicians operating a Wild B8 stereo plotter. .8) - Photo, black & white, c1985. Unidentified technician in AUTOMAP 2 operating a Wild B8 stereo plotter..1P, .2P, .4P, .5P, .7P – no annotations. .3P – annotated ‘Standing - , Seated SPR Ken Jefferies (sic). .6P – annotated with date ‘1979’ .8P – annotated ‘AUTOMAP 2’royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, air survey, photogrammetry

This is a set of six photographs of stereoscopic equipment and personnel at the Army Survey Regiment, Fortuna, Bendigo, c1950s to c1960s. The stereoscopes shown in photos .1P and .2P were used to stereoscopically view and interpret features in overlapping aerial photographs. The stereoscopic plotters shown in photos .3P and .4P were used to stereoscopically plot topographic detail from overlapping aerial photographs using a pantograph arm with pencil onto a controlled plotting sheet. The Ryker Model PL-3 Wernstedt-Mahan type stereoscopic plotter shown in photos .5P and .6P was used for precision contouring, planimetry and profiling. It was a comparatively simple stereoscopic mapping instrument designed to use ordinary contact prints of aerial photographs. It provides for plotting on a constant scale and approximate tilt correction but does not provide refinements such as correction for lens distortion. The plotter in Photo .6P does not have its pantograph arm attached. These plotters pre-date the Wild B9 and B8 stereo plotters introduced in the 1960s.This is a set of six photographs of stereoscopic equipment and personnel at the Army Survey Regiment, Fortuna, Bendigo, c1950s to c1960s. Black and white photos are on photographic paper and were scanned at 300 dpi. .1) - Photo, black & white, c1950s to c1960s, Universal Stereoscope, unidentified technician. .2) - Photo, black & white, c1950s to c1960s, Old Delft Scanning Stereoscopes, unidentified technicians. .3) - Photo, black & white, c1950s to c1960s, Unidentified stereoscopic plotters and technicians. .4) - Photo, black & white, c1950s to c1960s, Unidentified stereoscopic plotter, CPL Bill Shapcott. .5) and .6) - Photo, black & white, c1950s to c1960s, Ryker Model PL-3 stereoscopic plotter.Photo .4P is annotated on back - ‘Bill Shapcott (CPL)’royal australian survey corps, army svy regt, rasvy, army survey regiment, fortuna, asr, air survey, photogrammetry

These four photographs of SPR Santina (Argetto) Straube capturing topographic features – plotting with a Wild B8 stereo plotter were most likely taken in c1980. Introduced in 1966, the Wild B8 stereo plotter was used for plotting topographic detail and contours. These analogue machines were manually controlled by adjusting the control knobs for the orientation of the 3D image. The B8s used a nine-inch square photo image on a film or glass diapositive which allowed highly accurate extraction of map features. At first, plotting by B8 and B9 equipment was undertaken at the aerial photography scale of 1:80,000 in pencil onto a controlled plotting sheet. Sheets were then inked up and reduced photographically to the 1: 100,000 publication scale for scribe impression production. In these photos SPR Santina (Argetto) Straube was plotting with a pencil or ink pen mounted at the far end of the pantograph arm. The plotting procedure was upgraded to direct plotting in ink with photographic reduction to publication scale. In 1975 four B8s were upgraded with tri-axis locaters as part of the Input Sub-system to enable digital extraction to AUTOMAP 1’s topographic database. When AUTOMAP 2 was introduced in 1982 these B8s were upgraded, and additional machines added to expand the Army Survey Regiment’s digital capture capability. This is a set of four photographs of a technician capturing topographic Features with a Wild B8 stereo plotter in Air Survey Squadron – Army Survey Regiment, Fortuna, Bendigo. 1980. The photographs were on 35mm negative film and were scanned at 96 dpi. They are part of the Army Survey Regiment’s Collection. .1) to .4) Photo, black & white, c1980. SPR Santina (Argetto) Straube operating a Wild B8 stereo plotter..1P to .4P – no annotations.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, air survey, photogrammetry

This collection of 14 photos was most likely taken in the 1970s and 1980s in Air Survey Squadron. The PDP 11/70 minicomputer shown in photo .1P was the operating system introduced in 1977 as the mainframe system for the control of the APC4, aerial triangulation block adjustments, SORA OP Analytical Orthophoto control, APR Analytical Terrain Profile Recorder computation, graphics, and general computing. Technicians used the Wild A9 Stereocomparator shown in photo .2P to accurately measure between pass, tie, and survey control points on aerial photographs. The Zeiss D2 Planimat Stereoplotter shown in photos .3P to .4P was used for analytical orthophoto control. It was introduced in 1972-1973 The Zeiss (Jena) Stecometer analytic stereocomparator for air photography shown in photos .5P to .11P and .14P was introduced at Air Survey Squadron in 1963. Aerotriangulation production was expedited using computers for analytical photogrammetric processes. The technician accurately measured between pass, tie, and survey control points on aerial photographs. Wild PUG4 point transfer devices shown in photos .12P to .13P were introduced in c1968 superseding the PUG2 devices. PUG4 devices were used by technicians to stereoscopically view the photography containing the survey control points and the mapping aerial photography. The Control points were transferred from the control photography to the mapping diapositives of aerial photography by drilling their locations into the photographic emulsion.This is a set of 14 photographs of Air Survey Squadron personnel operating aerotriangulation equipment at the Army Survey Regiment at Fortuna, Bendigo, c1970s to 1980s. Photographs .1P to .13P were on 35mm colour slide film and scanned at 96 dpi. Photograph.14P was printed on photographic paper and was scanned at 300 dpi. They are part of the Army Survey Regiment’s Collection. .1) - Photo, colour, c1979, PDP-11 minicomputer. .2) - Photo, colour, c1970s, Unidentified technician operating a Wild A9 Stereocomparator. .3) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter. .4) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter, unidentified technicians. .5) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter, SGT Christopher Wardley. .6) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter. .7) to.9) - Photo, colour, c1970, Zeiss (Jena) Stecometer, unidentified technicians. .10) to.11) - Photo, colour, c1988, SPR Toni Wright operating a Zeiss (Jena) Stecometer. .12) - Photo, colour, c1970s, Wild PUG4 point transfer device, SPR John Shepard. .13) - Photo, colour, c1970s, Wild PUG4 point transfer device, SPR David Edwards. .13) - Photo, colour, c1970s, Wild PUG4 point transfer device, SPR David Edwards. .14) - Photo, colour, c1980, Zeiss (Jena) Stecometer, SGT Bruce Hammond.Some of the equipment is annotated on the frame of the 35mm slides.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, aerotrig, photogrammetry

This is a set of 24 photographs of Air Survey Squadron technicians capturing topographic Features with a Wild B8 stereo plotter and operating AUTOMAP 1 equipment at the Army Survey Regiment at Fortuna, Bendigo, 1980. 17 of these photographs were taken of SPR Nick Van Dalen and SPR Santina (Argetto) Straube capturing topographic features – plotting with a Wild B8 stereo plotter were most likely taken in 1980. See item 6185.4P for black & white copies of photos of SPR Santina (Argetto) Straube operating the Wild B8 stereo plotter. Refer to item 6204.8P for detailed information and additional photographs of the Wild B8 stereo plotter. The history of the AUTOMAP 1 system is covered in more detail with additional historic photographs in pages 116-118 of Valerie Lovejoy’s book 'Mapmakers of Fortuna – A history of the Army Survey Regiment’ ISBN: 0-646-42120-4. See items 6122.20P, 6183.19P, 6184.20P, 6200.5P, and 6222.17P for additional photographs of the AUTOMAP 1 system.This is a set of 24 photographs of Air Survey Squadron technicians capturing topographic features with a Wild B8 stereo plotter and operating AUTOMAP 1 equipment at the Army Survey Regiment at Fortuna, Bendigo, c1980. The photographic proofs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographic proof prints were scanned at 600 dpi. .1) to .8) Photo, black & white, 1980. SPR Santina (Argetto) Straube operating a Wild B8 stereo plotter. .9) to .17) Photo, black & white, 1980. SPR Nick Van Dalen operating a Wild B8 stereo plotter. .18) to .24) Photo, black & white, 1980. CPL Gerry Gunn undertaking AUTOMAP 1 computer system duties..1P to .24P – no annotations.automap 1, royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, photogrammetry

This set of 20 black & white photographs of the refurbishment of Air Survey Squadron’s production areas, was taken in circa 1982. These refurbishments were most likely in preparation of the AUTOMAP 2 production system and to accommodate the expansion of the Army Survey Regiment’s work force. This photo set also includes the exterior and interior of a new building - 16A, a modular building of several sections transported in and joined together as part of the expansion. Another modular building - 16B was added later in the 1980s to accommodate Technical Services. The two buildings eventually were removed after Fortuna was sold by Defence in 2008.This set of 20 black & white photographs of the refurbishment of Air Survey Squadron’s production areas, was taken in circa 1982. The photographs are on 35mm negative film. They are part of the Army Survey Regiment’s Collection. The photographic negatives were scanned at 96 dpi. .1) to .2) - Photo, black & white, c1982. Air Survey Squadron building refurbishment. Pathway between Building 16 and Building 16A. .3) to .4) - Photo, black & white, c1982. Air Survey Squadron Building 16 refurbishment. .5) - Photo, black & white, c1982. Air Survey Squadron’s CAPT Chris ‘Monty’ Gehrmann. .6) - Photo, black & white, c1982. AUTOMAP 1 system, L to R: SGT Jim Gill, unidentified. .7) - Photo, black & white, c1982. AUTOMAP 1 system, SGT Bruce Bowers. .8) - Photo, black & white, c1982. AUTOMAP 1 system, unidentified staff. .9) - Photo, black & white, c1982. Technical Services - L to R: Tony Spurling, Joe Farrrington. .10) - Photo, black & white, c1982. Technical Services - Tony Spurling. .11) to .12) - Photo, black & white, c1982. Technical Services, unidentified staff. .13) - Photo, black & white, c1982. Air Survey Squadron, L to R: SPR Nick Van Dalen, SSGT Les Dixon, unidentified. .14) - Photo, black & white, c1982. Air Survey Squadron, L to R: SGT Greg Byers, WO1 Graeme Birrell. .15) - Photo, black & white, c1982. Air Survey Squadron, L to R: SSGT Bruce Gordon, CPL Dave Irving, SGT Phil Meagher, SSGT Brett ‘Dutchy’ Van Leeuwin. .16) - Photo, black & white, c1982. Air Survey Squadron, L to R: SGT Mick Hogan, CPL John Gilbert, SPR Lorraine (Daly) Talbot-Smith, SPR Santina (Argetto) Straube. .17) - Photo, black & white, c1982. Air Survey Squadron, L to R: CPL Dave Irving, SSGT Bruce Gordon, SGT Phil Meagher, SSGT Brett ‘Dutchy’ Van Leeuwin. .18) - Photo, black & white, c1982. Air Survey Squadron, L to R: CPL Dave Irving, SGT Phil Meagher. .19) - Photo, black & white, c1982. Air Survey Squadron, L to R: SPR Lorraine (Daly) Talbot-Smith, SGT Mick Hogan, CPL Dave Irving. .20) - Photo, black & white, c1982. Air Survey Squadron, L to R: SGT Phil Meagher, CPL Dave Irving, SSGT Brett ‘Dutchy’ Van Leeuwin, SSGT Bruce Gordon,.1P to .20P – no annotationsroyal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, photogrammetry, automap 1

This is a set of six photographs of Lithographic Squadron personnel with Defence Cooperation Program (DCP) students at the Army Survey Regiment, Fortuna Villa, Bendigo Victoria, 1985. These informal and formal group photos were taken on the day of a CO’s Parade. Litho Squadron provided printing and photographic reproduction to the two DCP students. RA Svy also provided technical training to DCP students in map production skills such as, cartography and photogrammetry at the Army Survey Regiment and the School of Military Survey, Bonegilla. The Australian Defence Force over several years sponsored international students from counties such as Indonesia, Malaysia, Papua New Guinea, Philippines, Solomon Islands and Vanuatu. It is not known which South Pacific country these DCP students came from.This is a set of six photographs of Lithographic Squadron personnel with Defence Cooperation Program (DCP) students at the Army Survey Regiment, Fortuna Villa, Bendigo Victoria, 1985. The photographs are on 35mm negative film and were scanned at 96 dpi. They are part of the Army Survey Regiment’s Collection. .1) Photo, black & white, 1985. L to R: Warren ‘Waldo’ Shirley, Per Andersen, Trevor Osborne, Roy Hicks, Lance Strudwick, Steve Burke, Dale Hudson, Paul Baker, Ralph Chant, Peter Breukel, John ‘Flash’ Anderson, Chad Hardwick, Peter Imeson, DCP student John or Henry, unidentified, Greg Rowe, John South, unidentified, Mick ‘Buddha’ Ellis, John ‘Junior’ Whaling, Terry King, Daryl South, DCP student John or Henry, Bronwyn Jones, John Bateman, Kerron South, unidentified officer, Peter Dillon, Kim Reynolds, Rob Jones, unidentified, Jeff Lynch, Garry Hudson, Mark ‘Dogs’ Doherty, Jim Ash, Gavin Neilson, Jeff Willey, unidentified, Graham Johnston, Steve Egan, Peter Barrett, George Austen, Dave Miles. .2) - Photo, black & white, 1985. L to R: Warren ‘Waldo’ Shirley, Per Andersen, Trevor Osborne, Roy Hicks, Lance Strudwick, Steve Burke, Dale Hudson, Paul Baker, Ralph Chant, Peter Breukel, John ‘Flash’ Anderson, Chad Hardwick, Peter Imeson, DCP student John or Henry, unidentified, Greg Rowe, John South, unidentified, Mick ‘Buddha’ Ellis, John ‘Junior’ Whaling, Terry King, Daryl South, DCP student John or Henry, John Bateman, Kerron South, unidentified officer, Peter Dillon, Kim Reynolds, Rob Jones, unidentified, Jeff Lynch, Garry Hudson, Mark ‘Dogs’ Doherty, Jim Ash, Gavin Neilson, Jeff Willey, unidentified, Graham Johnston, Steve Egan, Peter Barrett, Dave Miles, George Austen. .3) - Photo, black & white, 1985. Photo Troop L to R: Steve Burke, Garry Hudson, Warren ‘Waldo’ Shirley, Ralph Chant, Gavin Neilson, DCP student John or Henry, Paul Baker, Trevor Osborne, Peter Imeson, Mick ‘Buddha’ Ellis, unidentified, John ‘Junior’ Whaling, DCP student John or Henry, Chad Hardwick, Terry King, Dave Miles, Graham Johnston, Kerron South, Bronwyn Jones, Rob Jones, unidentified. .4) - Photo, black & white, 1985. L to R: WO1 Jeff Lynch, DCP student John or Henry, CAPT John South, unidentified officer, DCP student John or Henry, WO2 Dave Miles. .5) & .6) - Photo, black & white, 1985. Print Troop L to R: Per Andersen, Daryl South, Lance Strudwick, Peter Dillon, DCP student John or Henry, Jeff Willey, John Bateman, Roy Hicks, Paul Davis, Dale Hudson, Kim Reynolds, Greg Rowe, Jim Ash, DCP student John or Henry, Mark ‘Dogs’ Doherty, Peter Breukel, Peter Barrett, unidentified, unidentified officer, Steve Egan, George Austen.No personnel are identified. Date and DCP students noted on film negative sleeve.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, litho sqn, litho

Multiplex mechanical stereoplotting equipment was used at the Army Survey Regiment, Fortuna Bendigo. c1950s. Multiplex equipment was imported from the UK in 1951 and introduced in the following year, to accelerate map production output covering CMF training areas at 1:25,000 map scale. Multiplex plotting was a productive advancement replacing the ‘Arundel’ method of graphical plotting planimetric detail that was expensive and slow, especially in timbered mountainous terrain. Air photos were made into small diapositives and mounted on racks in the exact position relative to when the aerial photos were taken. The technicians operated the Multiplex in a darkened room, with one photo projected with a green filter and the other through a red filter to form a 3D view of the overlapping photos. The 3D model projected onto a platen, which was a small platform that was raised up and down. The technician viewed the 3D image with special glasses fitted with red and green lenses. In the centre of the platen was a small pinhole that served as a floating mark, with a vertical pencil located exactly below the pinhole. This tracing table was moved to follow the topographic feature or contour line and draw it on the paper underneath. The technician raising or lowering the platform’s floating mark to match the height of the 3D terrain. It also replaced the slotted template method of mechanical adjustment of strips of aerial photography, however was restricted to each strip rather than between strips in the block. Although the Multiplex was phased out of production in 1968, it was used in the training of photogrammetry and aero-triangulation at the School of Military Survey located at Bonegilla, Victoria until the early 1990s. The history of the Multiplex is covered in more detail with additional historic photographs, in pages 50 to 51 of Valerie Lovejoy’s book 'Mapmakers of Fortuna – A history of the Army Survey Regiment’ ISBN: 0-646-42120-4. This instrument is only one of the projectors of a set and is unfortunately missing its platen coloured filters and coloured glasses.A black wooden box containing a Multiplex Unit Projector (incomplete). The Multiplex has a Lamp Head, Barrel Housing, Body of the Projector and a Platen which is missing.WILLIAMSON MANUFACTURING CO, PHOTOGRAPHIC ENGINEERS, SERIAL NUMBER 3437, TYPE MPC, LITCHFIELD GARDENS, LONDON AND READING.royal australian survey corps, rasvy, fortuna, army survey regiment, army svy regt