4 Door seat springs

[kimlinh]

I have a 1929 Murray Fordor that needs rear seat springs. The car has a slant windshield front seat and may have a rear seat out of a slant windshield as well. Both seats fit the car fine but I need to know what the rear seat is from. How can I tell what rear seat I have? The seat has been reupholstered in vinyl and there are no tags to identify it. Does someone in the Connecticut area have a Fordor that I can compare my rear seats to. Any help is appreciated.
Thanks in advance.