Replacement locking mechanism request

A home owner from Provo, UT says:
I have 4 older windows that need the locking mechanisms replaced. I'm not sure of the window manufacturer--they are very old. But the lock has a "GA" stamped on it. I'll enclose a pic. Can these still be purchased or am I out of luck?
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Tom from SWISCO responded:

Hello, Mel. Your lock looks very close to our 90-005. I think this may be just what you want, but review our dimensions just to be 100% sure.

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Alternate image for 90-005

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