No markings or numbers. coil is broken on one side, window will not stay open. Can't find parts anywhere. 1.25 inches high by 1.50 wide. We purchased parts for our screen door handle thru you and were very satisfied.
Tom from SWISCO responded:
May 5, 2017
We would like for you to please take a look at our 15-111 pivot shoe and our Series 160 coil balance spring. Let us know if these are what you have been searching for.