Tilt hardware for vinyl windows

A home owner from Delano, MN says:
On the underside of the hardware there are the markings R27 and L20. The window itself is marked 2600 BL. I am unable to find hardware that looks similar to these on your site. Any help is much appreciated.
User submitted photos of tilt latches.
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Tom from SWISCO responded:
We may be able to help. I recommend you look at our 26-243 and 26-244. I can't be sure that these will work, but carefully compare the dimensions we show to your own hardware and let me know how they match. If they differ in any way, let me know exactly how.
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