I just found this gray rubber seal flopping around inside our dryer. (see seal pic laid over the open door). I'm hoping someone either has this type dryer, or simply knows where it came off.

Best guess - the blue ring between the door and glass. Second guess - the red ring around the metal openings edge and interior.

It looks like a simply job to disassemble the door and put it back on. Maybe more complicated if it's the interior edge seal. Any ideas? The seal is not a circle - it has a clean split so not sure if it broke - or came that way. Ideally re-using it would be nice.