Hi, Ive posted quite a bit without actually introducing myself. As my screen name says Rabbithole, yes ..that what happened when I began looking at coins..I fell down the rabbithole:) I'm a wife and mother of 3 kiddos, my youngest is on the autism spectrum and is obsessed with numbers and letters. He is still very young (preschool) however, I think this could be a great bonding /educational hobby that mom and son can share. Thank you for all your advice!!