Historical information

Associated sheet of paper inside box lists each of the test plates as having been tested and found defective.

Physical description

Cardboard box containing cotton wadding and straw padding layered above glass plates individually wrapped in tissue paper. Five plates in the top layer, followed by more padding, 2 more plates, padding, 8 glass plates, padding and straw. Plates are variously sized and circular in shape.

Inscriptions & markings

Handwritten on box lid:
'REJECT TEST PLATES / MK1 DIAL SIGHT'
unreadable handwritten inscription
'18'
'[E. E. N Wa...worth] / [...] / [Kob...]'
'23/11/45'
Munitions labelled with technical specifications of each lens.