Nice! I don't have any boxes for the ones I have, nor any of the original handles or the clamps.
As far as the mold design is concerned, I don't know that it changed at all, for the whole life of the firm. Those who made copies or reproductions did use other designs for their molds, though the milling of the figures remained the same. Herr Höhmann’s molds were excellent, and they produce nice, crisp castings. He was a real craftsman. The ones that Castings sold were of middling quality, and the castings that come out of them are soft in their detail.
Prost!
Brad