Window Locks
Thanks for reaching out to us. I'm afraid we don't sell this exact lock, but its function appears pretty ordinary despite its design. I'm just a little confused by your stated dimensions. Am I correct to interpret the hole center spacing as 2-1/4", with a backset of 3/4"? Hole spacing is probably the most important aspect to consider. Overall size doesn't matter all that much.
If so, then the closest match we have to that kind of hole placement would be our 90-274. This has a 2-1/4" hole center spacing but an 11/16" backset. I recommend double checking your original backset to see if this might line up.