The C3 is the most popular big Hammond in the UK where B3 models are scarce since few were originally sold here. The C3 is though, identical to the B3 except for the cabinet. I've owned and restored quite a few C3s over the years and these pictures show just a handful when they were residing in my garage.

A battered C3 that originally came from an ice rink in the Midlands. Despite its appearance it ran beautifully