H.O.T.D.

Years ago someone I knew described someone else as a numismatist. I had just read an article about in the Jewish Week about how the other person was not only an assistant principal but a rare coin collector as well. I figured out what the word meant.

Recently, I read Julian Barnes refer to being a philatelist in his youth. His brother focused on stamps of Britain and his area was "The Rest of The World," because he had to be different than his older bro. Again, I figured the word out.

Numismatist

Philatelist

Collectible words