A home owner from Rochester, NY says:
There is a capital "M" in the middle of the back of the part. There is on the back at the top the following marling:
PAT# 15139.291

I need both left and right side latches

User submitted photo of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Start by looking at our 26-243 and 26-244. Carefully compare our dimensions to yours to confirm that they match.
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