Details
MAMIYA OPTICAL CO., JapanA 120-rollfilm Mamiya Six camera no. 15413, the top-plate with waistlevel and direct-vision finders, film mask and a K. O. L. Special 7.5cm. f/3.5 lens no. 66209, in maker's leather ever ready case.
Literature
Sugiyama et.al. (1985), The Collectors Guide to Japanese Cameras, p. 25, no.s 1172, 1174 and 1175.