Tilt window lock
A home owner from Dunbarton, NH says:
June 27, 2014
I do not have a picture of one installed but was able to find a match on your website that shows the installation well enough. In case the pictures done show the measurements well enough here is a breakdown. The rectangle on top looking down is 2-11/16" long by 11/16" wide. The lower "cylinder" that holds the locking mechanism is 9/16" wide by 2-9/16" long. The locking triangle when fully extended is 5/16" long. The locking mechanism is spring loaded. I think I have covered it all but feel free to let me know any other measurements needed. As for markings there is a patent number 5,139,291. There is also a 75 and an "E" that are separate from each other.
Tom from SWISCO responded:
June 30, 2014