This Minox C camera just came as part of a Minox lot bought recently. Serial number is 2450078, which makes it a 1974 camera, according to the Minox serial numbers published. Red lamp, raised rim, in very good condition, needs cleaning (and film plus battery).
Funny thing: the previous owner glued a piece of paper onto the back plate, reading MALLORY PX27; obviously he needed a reminder on what sort of battery this camera works with. The paper went off easily, but the shadow of the print remained onto the aluminium plate. Can be cleaned, I guess, but I will leave as it is, give this camera some personality.