I agree that you have a 54/55-1st bed. The 47-53 beds "looked" the same but they did have different number of "bed planks". See if you can find the plate on the driver's side , hinge side of door jamb. It will have some numbers stamped in it. This will tell you what cab you have. The doors are NOT 1949 unless someone went to a WHOLE lot of work to convert them to vent windows. If your truck is rust free, you are way ahead of the game. Your truck is NICE, regardless of what year(s) it is.
