088321
Photograph 088321 Second World War, 1939-1945DATE AND LOCATION UNKNOWN. OPTICAL GLASS BEING TESTED FOR THE ABSENCE OF STRAIN. AFTER PASSING THIS RIGID TEST IT IS MADE INTO LENSES AND PRISMS FOR SERVICE OPTICAL INSTRUMENTS.
006039 Accession Number: 006039
Description
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. CRANSTONE).
Details
Accession Number
006039
Photographer
Edward Lefevre (Ted) Cranstone
Classification
Photograph
Object Type
Negative
Physical Description
Colour: Black & white
Date Made
c February 1941
Place Made
Whole/Part
Whole
Item Count
1
Copyright
Copyright expired - public domain
Conflicts
Tags
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006042
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006041
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