細節
J. H. DALLMEYER, London
A 6½ x 9cm. Speed camera no. DS340 with a Dallmeyer Pentac f/2.9 4¼ inch lens no. 111505, in maker's leather case.
A 6½ x 9cm. Speed camera no. DS340 with a Dallmeyer Pentac f/2.9 4¼ inch lens no. 111505, in maker's leather case.