N.M.K.

The initials N.M.K. are found — in lowercase letters n.m.k. — on a very early example of the Vero Four F, a Japanese 3×4cm camera made by Kinshō in the late 1930s, and on the Flora, a Japanese 6×6cm prototype of unknown origin, made in the late 1940s. The signification of the initials is obscure; they might be related to Kinshō or correspond to some other company.