It is a door lock for my screen door on the outside has a straight handle on the inside that's a little straight handle with a lock above it.
Tom from SWISCO responded:
August 31, 2018
Thanks for contacting us. We don't have an exact match for this handle set, as it's no longer made, but I actually think you could get our 40-152 to work. Look it over and let me know what you think.