Physical description

Part of a series of optical munition snapshots 1940-1947. Refer to Cat No 138 for full details. Black and white photo shows E R Johnson performing (presumably) test of optical specimen. Duplicate copy of Cat no 138; in OMP Album Vol 1 #18 .

Inscriptions & markings

In ink on lower left hand corner : “18”. Inscribed on back in pencil: “No. 18 E.R. JOHNSON”