The "bright metal [stainless steel] moldings for front and rear fenders" was only available on Panel trucks (models 3105, 3805 : RPO 390B) but it was available in most Advance-Design years: 1947-51 and 54/55. It looks like it not available in 1952-53 because some metals (nickel in this case, I think) was needed for the Korean conflict.