@RoyBoy posted:Marx did not make any B units in the almost scale size tinplate Santa Fe #21. I made these myself with the help of some friends.
Marx made B units in the later plastic diesels and in the much smaller tinplate diesels, but not in the big ones.
Well silly me!! I didn't catch those B units in the original post!
Are they also litho graph units? IF so... that definitely requires a "How'd 'ja doit???" question.
Andre