Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of J.F.G. Darby (Left) & W.B. Lasich (Right) sighting on apparatus(??).In ink on lower left hand corner : “11”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of L.H. Martin with ?? apparatus (possibly gun sight).In ink on lower left hand corner : “10”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of “Peter Law (Left) & A.C. Goodwin (Right)”. Involved with optical flats in aluminising apparatus.In ink on lower left hand corner : “9”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of “Peter Law (Left) & A.C. Goodwin (Right)”. Involved with optical flats in aluminising apparatus.In ink on lower left hand corner : “8”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Geo Armitage testing a monocular (or part of the binocular testing program?). Same apparatus as in no 134. In ink on lower left hand corner : “7”.

Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of Henri Rathgeber operating Michelson Interferometer.In ink on lower left hand corner : “6”.

Olive green enamelled stereoscope enclosed in olive green wooden hinged box. Two test stereoscopic pictures of a rhino also kept in box. A wooden oddment (10 cm) is also enclosed.Engraved in white on stereoscope: “DC-1940 Serial No. 32” Label on front of box: “stereoscope”

Planimeter consisting of brass disc and measuring instrument made of white disc and attached bar. To measure area up to about the size of one A4 page. The instrument is stored in a black hinged box with purple velvet lining and small metal catches. Instruments instructions are attached to a label on the inside of the case. A small key is attached to the case lid by string. (23.1 = box, 23.2 = brass disc, 23.3 = planimeter)On planimeter (23.3): “G.Coradi Zurich Switzerland No. 3509” On box (23.1): “Nat. Phil. Lab. No. 1199, Gebr Wichmann Berlin”

Copper cylinder to which radial copper vanes are brazed defining twelve resonant cavities. Central cylindrical cavity contains white oxide coated cathode sandwiched between two stainless steel disks, one at each end. Three electrodes pass through glass-copper seals, the copper tubes are attached radially to the outside of the cylinder.

Black and white photograph of Professor Laby with optical munitions equipment. Glued on cardboard backing with red border: “Professor Laby Optical Munitions 1943”. Hand written on back of cardboard: “Professor Laby Optical Munitions 1943”. On back of cardboard stamp: “University of Melbourne School of Physics Archive”Typed label and under photo “

Black and white photo of Professor Hartung working with optical glass. Glued on cardboard backing with red border.On back of frame hand written: “Prof Hartung Chemistry School of Optical Glass 1943?” “Stamp” “University of Melbourne School of Physics Archives”

Black and white photograph of Dick Johnson using a polarimeter. Photo is glued on cardboard backing with red border.Hand written on back: “Optical Munitions E.R. (Dick) Johnson MSc candidate on polarimeter”. Stamped on back: “University of Melbourne School of Physics Melbourne”

Wooden box (28.1) containing the following (11 items + 2x21disks (sets A &B): 28.2: black enamelled harmonic analyser (main body,serial no. 37 28.3: plastic slide rule (40 inch) 28.4: Instruction manual 28.5: Long steel metal rule (92 cm) with handles 28.6: Wooden clipboard with paper 28.7: brush 28.8: fixed arm planimeter Serial No. 25498 - 4 components and box 28.9: fixed arm planimeter Serial No. 25499 - 4 components and box 28.10 Harmonic analyser black piece 28.11 Harmonic Analyser long metal attachment 28.12 Harmonic Analyser short metal attachment 28.13 - 28.55: 42 metal discs (not numbered individually) 28.56 Key to box (not numbered)Front right hand side of box in texta: “GW7446”; on inside lid of box: “GW7446”; On harmonic analyser in white: “No. 3 Harmonic Analyser Stanley London Serial No. 37. Made in England”; On clipboard (28.6): ?“P.Cholec Shade”; Stamped on brush (28.7): “Made in England Pure Bristle”; Label in planimeter box (28.8): “7/124/F/152/500 Fixed Arm Planimeter Serial No. 25498. 1 Rev = 100 sq. cms. Constant = 18.676”. Inscribed on planimeter (28.8): “Albrit 25498 Made in England” Label in planimeter box (28.9): “7/124/F/152/500 Fixed Arm Planimeter Serial No. 25499. 1 Rev = 100 sq. cms. Constant = 18.676”. Inscribed On planimeter (28.8): “Albrit 25499 Made in England” On discs 28.13-28.55: Half are “A” disk and half are “B”. All are inscribed.

Black and white photograph of “J” Apparatus laboratory (refer to Reg No. 33 and Reg No. 34). Laminated photograph is mounted on wood and secured with masking tape. Metal hook on back for hanging. Frame is painted black.Stamped on back: “Artfilm Laminating Block Mounting Specialists, 337 Balwyn Road, North Balwyn 3104. Tel: 816 3691”