What is the Coolest Thing at your Booth - Avidan Pell of Coin Key
American Numismatic Association (2016)
Multi-Media Summary
Avidan Pell describes his coin keys and how he came up with the unique idea.
Note, this video is not available with full-view on NNP. The ANA copy may be accessed at https://www.youtube.com/watch?v=3uNZpbqgFjk (link verified 8/2023).