I think the 'Spinx' was a CZ-75 clone - as was the BRITISH 'Sitfire' as well.
Why not try the real thing first before ordering the swiss copy ? Undoubtedly the Swiss article will be superbly crafted and a collector's piece.
They hads more of a market when the Cold War was on and inport into the USA was banned/severely restricted. The 1975 design was never patented.
I bet they wish they had now
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***Big Bunny***