Tom from SWISCO responded:
December 14, 2023
Hello! Thanks for posting. Hopefully we can help you out with this lock, but reviewing your photos it appears to be a very old style. I don't think you're going to have an easy time replacing this. Looking through our inventory, there are only three products that I think have any hope of working: the 90-193, 90-006, and 90-023W. You'll note right away that none of these are an exact match for the original, but judging by the age of the window there's a very strong chance that your original doesn't exist anymore. A bit of adaptation may be necessary, and even then it's no guarnatee. Between the three options I'm personally leaning toward our 90-193. This is closest in terms of style, but my major concern is hole placement. If our screw holes don't align with yours, they may need to be redrilled. For now, you can review the dimensions we list for each product and see what you think. I want to stress that none of these are a sure thing, and if any are going to work they will almost certainly require a fair bit of handiwork. Dimensions for 90-193
Alternate view of 90-193
Alternate image for 90-006
Dimensions for 90-023W
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