004139
Photograph 004139 Second World War, 1939-1945FIBRE GEARS BEING TESTED WITH PARKINSON GEAR TESTER. (NEGATIVE BY CRANSTONE).

The Australian War Memorial Collection. Test site
DROPS OF BLOOD BEING TESTED UNDER MICROSCOPE. (NEGATIVE BY CRANSTONE).
FIBRE GEARS BEING TESTED WITH PARKINSON GEAR TESTER. (NEGATIVE BY CRANSTONE).

MAKING OF NITRO CELLULOSE. AFTER BEING WASHED IN A TANK WITH CLEAN WATER IT IS SPUN IN THIS MACHINE AT HIGH VELOCITY TILL ALL WATER HAS BEEN REMOVED. IT IS CHIPPED OUT AND DROPS THROUGH BOTTOM OF MACH

WEARING STERILISED MASK ASSISTANT IS PLACING BOTTLES OF BLOOD IN REFRIGERATOR AFTER CLASSIFYING. (NEGATIVE BY CRANSTONE).

DEER PARK - ARMAMENT ANNEXE NO. 29. CRUMBLING THE PASTE, WHICH IS TRANSFERRED SHEET BY SHEET FROM THE DRYING TRUCKS TO THE "BABY-BATHE". THE BROKEN PASTE DROPS THROUGH A SCREEN INTO A BAG. (NEGATIVE B

WHEN THE GLASS HAS FUSED INTO A SOLID MASS IT IS SLOWLY COOLED. IT IS NOW TESTED FOR THE ABSENCE OF STRAIN. HAVING PASSED THE RIGID TEST IT CAN NOW BE MADE INTO LENSES OR PRISMS. (NEGATIVE BY E.L. CRA

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: AFTER FINAL POLISHING LENS IS TESTED WITH SODIUM MONOCHROMATIC LIGHT. THE LENSES MUST CONFORM TO AN ACCURACY OF ONE TWO MILLIONTH OF AN INCH OVE
