Technical Need help to I.D. a few NOS Ford rear fenders

Need assistance on these two fenders. The left(first) one, I'm sure is 35-37 Ford Panel, the second one with the "step" at the rear, I'm not sure of, but would appreciate any help. Helping a friend of dads' get rid of some stuff. Thanks in advance! Paul

 

Maybe the left one is for a 35-ish commercial, but I'm sure the right one isn't a Ford at all.

An old company that used to repro fenders back when they were almost new cars used those slotted holes a lot. I've seen "Ford" fenders with the slots, but not made by Ford. I think the name of the company was Fostoria. Most all Ford fenders had round holes up top in the 30's.

 

Thanks! Stuff belongs to an older friend of dads' and helping him out. Worked for Ford for almost 50 yrs and everything he had was Ford. The one is 35-37 Ford Panel, he's pretty sure, but wasn't sure on the other one. Thanks again.

 

I think you're right, that other fender looked Moparish to me, so upon doing some searches, I think it's '33 Chrysler/Desoto.

 

My ‘32 Dodge PU rear fenders are slotted like that as well. But mine are flattish on top, those look like they have curvature