stake bed ID? on my '52 F-3

[52'F-3]

Hey all, I normally post on the "newer"(48-60) truck forum, but my research is suggesting the "flatbed" i'm using on my 1952 is much older. So, I was told it came off a 1969 (i found laying in a field holding firewood) i could tell it had been mounted on a multiple trucks with different frame widths in during it's life. I found a site with 1932 AA Stake Bed truck info and this bed frame looks build exactly the same, only slightly scaled down. any ideas of what year this came off? (it does NOT have the ford script on it) Thanks...........