Corner latch

A home owner from Pennsylvania says:
Hi, I'm looking to replace two corner latches on an old storm window. It looks like there is a number '8' on the 'key' part that attaches to the storm window. On the slide bolt itself it looks like there are some faded numbers. It is hard to make out, but it may say '823' and then '788' in a little circle on the back. I hope this is useful; I am having a hard time finding the correct words to use for describing the parts.
Thank you for your help!
User submitted photos of window hardware.
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Paul from SWISCO responded:
Thanks for posting. Please look at our 91-176 corner latch sets and compare it to your own, I think this could possibly work for you.
How to install a window screen latch
How to install a window screen latch
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Slide Latch Assembly Diagram
Slide Latch Assembly Diagram
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