Your stamp appears to be in good condition. After doing a little research, i founds most of these sell for a couple bucks in fair condition. Yours is in quite good condition so i think it could sell for $10 but individual stamps never sell for much unless they are limited ones.
Re: 1870 6 cent Lincoln, Carmine stamp
Your stamp appears to be in good condition. After doing a little research, i founds most of these sell for a couple bucks in fair condition. Yours is in quite good condition so i think it could sell for $10 but individual stamps never sell for much unless they are limited ones.