Drawer track back plate

On the back plate there is a capital letter "R" and the number "60.1890" OR "50.1890" (very small and hard to read).

Length (height in the photo) is just under 2.5"

It fits 1" tall x 3/8" wide drawer track.

I think this part:

drawer-track-bracket/pd/Replacement-Drawer-Sockets/32-089

should work with redrilling the screws but wanted to see if there was anything closer to the original.

Thanks!

trying to upload the image again - failed the first time.