Listia requires a minimum of 2,000 credits for GIN (of which they then keep 200 credits). If you want a GIN on this, I can set up a 2,000 credit GIN (as long as no one has bid on it yet).
Postage is free within the USA, but I mail only via standard 1st class (untracked mail). The cheapest tracked mail is $2.32, which is well more than the value of the stamp itself (and the resulting 1,800 credits that I'll be getting are only worth about $0.54 (based on what Amazon gift cards thru Listia are going for). Technically speaking, the 49c in postage to mail this stamp is worth more than this stamp lot...