Konishiroku Kogaku (Japan): Konica 35 mm rangefinder cameras models Iiia and Iiim. The Iiia Sn 365921 with Hexanon 50 mm f1.8 Sn 3127306 in Seikosha-Mxl shutter, lens cap and makers Erc. The Iiim Sn 417981 with Hexanon 50m f1.8 Sn 3155900 in Seikosha-Slv shutter. (2)