Tom from SWISCO responded:
June 5, 2020
Hi there. This part is called a top sash guide. Yours in particular looks like a close match to our 18-073. Look this part over and let me know if our dimensions match up to yours. |
Tom from SWISCO responded:
June 5, 2020
That stamp isn't a product code or anything, it only tells me how strong the balance spring is. It otherwise doesn't have anything to do with the top sash guide. As long as your dimensions and design matches our product, I see no reason why ours won't work for you. |
Tom from SWISCO responded:
June 8, 2020
You're very welcome! Please let me know if you had any other questions. |