©
7sz: 1938 SK 5x30mm filters
©
7sz: 1938 SK 5x30mm + 1x40mm filters
©
7sz: 1938 S-K 30mm + 40mm filters cases
©
7sz: 1938 S-K 30mm filters square case
©
7sz: 1938 S-K filters 40mm case
©
7sz: SK 13.5 f4 filters 40mm in cases
©
7sz: SK 13.5 f4 filters 40mm
©
7sz: 1950's MIRROR BOX Filters Colours
©
7sz: 1950's MIRROR BOX Filters in-situ in case
©
7sz: 1950's MIRROR BOX Filters in-situ
©
7sz: 1950's MIRROR BOX Filters RED in-situ
©
7sz: 1950's MIRROR BOX Filters case front