GENTLEMAN:Not sure how much TOFC there was out or into MAINE during the late 40;s into 1955(my cut off year)thats one part of the question,the other is was the BAR/BM/MEC heavy in that traffic and if so what type of flat would have the 3 used?jury rigged or factory bilt(would guess 50'trailers and 50'flat cars???) Thanks Joel Norman