I will be sending you a separate email by each part needed

Thanks for reaching out! These window balances can be replaced with either the S378-17 or the S380-17. To determine the correct match, you'll need to measure the depth of the bottom shoe.

I believe our 1620 stamp can work in place of the 16B stamp, but it may be a good idea to double check that the sash weight falls between 8 to 12lbs.

Comparison of the S378, S380 and S385 balance shoes.