Window replacement parts

A home owner from Denver says:
I am looking for replacement cranks for Pozzi windows -originally installed in 1997. I don't have part numbers, just above photos.
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Bob from SWISCO responded:

Thanks for posting. Start by looking at our 39-031 and 39-032, or our 39-155 and 39-156. There is slight differences in the dimensions of both sets of operators. Look over both to see if one of these is a good match for your old hardware. Let us know what you find. 

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