installed 1982 .....part numbers printed on back side ---on left ' 2 '...on right side ' 40226 '
Bob from SWISCO responded:
August 14, 2019
Thanks for writing in. See our 38-097 and 38-098. These are new versions fo your old lock, so you'll also need the 38-079 Sash Keeper. Let me know what you think.