Hey guys and gals. My 641 came to me with this seat. On the decal on the back it says Fleisher Mfg Inc, Columbus Neb. So it needs new covering on the cushion and back rest. The torsion part works, but it needs new paint. I looked on the internet but couldn't find this model seat. The company is still in business, but not doing seats. Has anyone else seen a seat like this? Thanks for any input!