What I have here is a one cent Franklin stamp dated in 1908-09, Scott # 331. It is in used condition. It can be sold as $0.25. But if you are lucky to have a mint condition, the price ranges from $12-45.00 each. Well, I just kept mine as one of my collection rather selling it each. How about you guys? Do you keep old and new stamps with you? Even now, I am keeping mint condition of the newly released stamps because you will never know that their value is so much more when it gets older and passed on to your children's children. Check the values of your stamps online from time to time too so you will know how much they are valued these days.