Replacement window lock 0531708

A handy person from Michigan says:
I'm looking to replace the 1959 Casement Window lock. It might be a 0531708.
Picture attached.

Please give price for R and L.
A customer submitted photo of a casement window lock.
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Tom from SWISCO responded:
Thanks for posting in our discussion board! Before we can research any applicable replacements, can you please tell us the distance between the screw hole centers for each pair of screw holes? That will help us narrow down the search.
A quick learner says:
The centerline of the holes is 2-5/16" top/bottom and 1.25" front/back.
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Tom from SWISCO responded:
Thanks for the clarification. Unfortunately, this type of lock has been discontinued and is no longer available. However, I have a few suggestions that you may want to try.

The first set of locks and their keeper would be our 38-056 & 38-057 Andersen Casement Locks, with a 38-135 keeper.

The second set is our 38-097 and 38-098 EntryGard Sash Locks with a 38-079 keeper.

I cannot confirm whether or not these will work, but please compare them to your current hardware and see what you think.
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