Extended-Travel Channel Balance Quote

I'm not sure what you have, unfortunately. There are dozens of different extended-travel balances with that stamp. It's not a product code or anything, it just indicates the strength of the spring.

In order to figure out what Series this is, I need you to remove an undamaged version of this balance from the window and show me clear pictures of the top and bottom nylon fittings, as well as the metal hook at the end of the cord. I will also need you to tell me the quantity you wanted to buy.