Actually found in a barn! Bumper 1 looks like a 1932-1933-ish Plymouth. 64" wide. 3.5" tall. 32" center to center between the holes on the mounting brackets. Interesting bracket mounted center on rear for a light perhaps? Bumper 2... has distinctive diamond shaped fasteners and should make identification easy but I'm drawing a blank. 5" wide. 4.5" tall. Mounting holes on bracket 2" apart. Has what might be a crank hole in center.