Window balancer originally on Gienow windows.

Hi there!

Thank you for reaching out to us. We're happy to help with this, but the stamps on the balances aren't part numbers, so we'll need more information. Can you upload photos of the top and bottom fittings? 

We would also like to see an image of the inside of the balance’s metal channel, where the innerspring connects to the pulley mechanism; this connection is located in the middle of the channel.