Probably "Rat Rod" material, IMO. That one board is pretty ratty, but the others could be filled and repainted. The original boards were painted black (you mentioned a clear coating on the back and sides, but I don't know if that was original).
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.