These tilt window sash locks are 2 7/8" long 3/4" wide and 1/4" deep. The only markings are IR and 092.
Casey from SWISCO responded:
September 17, 2019
Hey, thanks for writing in! Going by your dimensions, I think the 26-390 and 26-391 could be a nice solution for you. Give it a look and let me know what you think.