Photograph Optical Munitions: Optical Flat

Welcome

We acknowledge the Traditional Owners of the place now called Victoria, and all First Peoples living and working on this land. We celebrate the history and contemporary creativity of the world’s oldest living culture and pay respect to Elders — past, present and future.

Please be aware that this website may contain culturally sensitive material — images, voices and information provided by now deceased persons. Content also may include images and film of places that may cause sorrow.

Aboriginal and Torres Strait Islander people are advised that this website may contain culturally sensitive material — images, voices and information provided by now deceased persons. Content also may include images and film of places that may cause sorrow.

Some material may contain terms that reflect authors’ views, or those of the period in which the item was written or recorded but may not be considered appropriate today. These views are not necessarily the views of Victorian Collections.

Users of this site should be aware that in many areas of Australia, reproduction of the names and photographs of deceased people is restricted during a period of mourning. The length of this time varies and is determined by the community.

Reuse of any Aboriginal or Torres Strait Islander material on this site may require cultural clearances. Users are advised to contact the source organisation to discuss appropriate reuse.

Physical description

Part of a series of optical munition snapshots 1940-1947. Refer to Cat No 137 for full details. Black and white photo of optical flat in de luxe case with certificate: “GLASS OPTICAL FLAT, made by Natural Philosophy Laboratory, Melbourne University” Number 18. Accuracy of surface flat within .000,001 inch .... Issued by (signd) T.H.L. Feb 19, 1941. Duplicate copy of Cat no 137; in OMP Album Vol 1 #17.