Tilt Aluminum Windows 5/8 Spiral Balance Pivot Shoes

I guess these windows are from late 70's or 80's. Double hung tilt. No names or numbers on windows. Balances are 19" long look a faded red. The upper windows have 17" balances. I couldn't find these pivot shoes. Only the top portion appears to be broken. The open part seems to be made that way I thought it might be broke off but looks like the other one. I couldn't find any other pieces at moment. I can send some pics or locks and tilt releases and latches if that helps.

I have pics of windows locks, latches and releases.

I did some studying this weekend of old posts and decided to get the 15-015 pivot shoe. I ordered series 600 19" and 17" spiral balancers with red tip. They kinda look between orange and red. I guess they are a faded red since orange was not a choice. I place an order last night. I found a PAT # on shoe and the 15-015 seemed close enough.