My mom dug out her coin collection recently, to check if she has anything valuable in her collection. I don't think so has as she doesn't have any knowledge on coins. She just collected any that came her way. It's only recently that she started buying the american eagle silver dollar, and she has since kept that separately. 

My mom also has a stamp and First Day Cover collection. That is more comprehensive, but still those are also not going to bring her money. Sometimes, i think she is quite disappointed with her own poor choice of collections. She could have spent the time and money on something more lucrative, right? LOL