wanted user manual challenge 15GP

Anyone have a user manual for a Challenge 15GP proof press?

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I’m not sure how similar the 15 GP is to the 15 MP, but you can download the manual for the MP here:

Vertallee Letterpress

Unfortunately there is a very large difference between the 15MP and the 15GP — from the inking system to the impression trip (which is what the info is really needed for). It looks like the MP has a traveling cylinder like the SP-15, while the GP cylinder is fixed with the bed shuttling back and forth.

I’d be interested in one if anyone locates one. I’ve got a 20KP press I’m helping restore with the fixed cylinder and shuttling bed. THanks!