Need replacement parts
A contractor from New Orleans la says:
August 4, 2016
The pics I included are that of a channel balance and the tilt that goes with them this is the only marks on them to maybe identify them
Paul from SWISCO responded:
August 8, 2016
It's hard to tell what you have based on these pictures. The only thing the stamp tells us is how strong the spring is. This may be our Series 751 channel balance. Carefully compare it to your hardware to confirm.