When I got my running 54-3100 in Clayton, Ga in 1977 it had the original seat material. A close friend of mine in the auto upholstery business who was a master restorer. He purchase the exact seat material for both my 42 and 54. It is an almost no grain dark brown Naugahide. I can send you a patch ( I hope), if you like. Or I can send you a picture, it is very smooth grain. Doc

Currently making 1954 3100 better than new and Genetics