I am not a stamp collector, but years ago my mother bought me three connected pages of 41 cent Star Wars Stamps because I am a huge Star Wars fan. They are in mint or near mint condition as far as wear, but they have been in a tube for years and are curling. They are not glued or mounted. I want to sell them, but should I leave them connected or separate them? Is it better to frame them or not? Thank you in advance for your help.