Not really a low number, but cool to look at, although the condition is poor & it is a $20, so it has value in commerce. I would say it's a spender.
I'm new to this but I got a small collection of fancy serial numbers, All I found myself. I would not call it a low serial number however you could call it a bookend I just put up $1 bill on eBay it was 78000000 Started the bid at $7.80 Mine was well circulated but it sold, had it been in Crisp condition think I could have started the bid at $78. Anyways you can prehaps start bid at $20.73 with a $7.30 shipping or start it at $27.30.