Tracey - mine is aftermarket, and does clearly have a serial number on the plate affixed to the seat.
That serial number is in the STC as well.
I am still curious if a form 337 would do the trick, because I find it obscene that the manufacturer expects $$$$$ for a reinspection....
I see their point from a CYA angle, but as a customer I am not pleased.
What does your paperwork cover?
