Metal casement latch

A quick learner from Massachusetts says:
Hi. Looking for a replacement latch for a metal casement window from the 50's/60's. Thanks for your help.
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Casey from SWISCO responded:

Hello, thank you for writing in! You appear to have an old style casement window lock that is unfortunately no longer made. Take a look at the parts I've associated and see if you could get any of these to work for you. 

Anatomy of a casement window
Anatomy of a casement window
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