Not saying you’re wrong, but it’s worth some cleaning and one more look.
The 4th pic of this EBay link….zoom in really close to see the faint stamping (964s) on the VERTICAL flange.
https://www.ebay.com/itm/CARTER-MOD....m2548.l6249&mkrid=711-127632-2357-0
Last edited by JW51; 02/26/2022 1:11 PM.
