Have not seen a brace like the one you posted.
The rear fender lower brace looks like the attached photo. One end bolts in side the fender lip (bottom rear of fender) & the other end bolts to a pre-punched hole in the side of the frame. There is another brace top center that is riveted in place to the fender.
Harold
Attachments
Rear Fender Brace Lower.JPG (36.69 KB, 49 downloads)

Last edited by Harold46; 06/21/2019 11:42 PM.

Harold
Is a restoration ever finished?