The only reference I found was to a June 1989 Heritage auction. The catalog provides the background of 460 gold 1909-S $20 coins apparently from the other nations’ central bank. A PDF of the page from the catalog with the story is attached.

I recently picked up the attached medal from or relating to the Fitzwilliam Museum in Cambridge (brass, 38mm, presumably 1970s-1980s) and noticed something familiar about those arms: the lozenges and the motto "DEO JUVANTE" are also found on the coins of Monaco. What's the connection? I have no idea as yet, but would love to know! Can any readers help?

I want you to know that I also look forward to The E-Sylum. Each issue contains so much info & feedback. It takes time & effort to do this. Thank you. I also wish to mention that I wrote an article on one-coin books. "Books tell stories of special coins," which appeared in Numismatic News last February

It's a truism in exhibiting at American Numismatic Association conventions that the glaring mistake will become apparent within minutes of Gene Hynds and/or Mark Lighterman sealing the cases. In fact, when I am ready to have them close the cases, I actually tell them it's time to help me find the typo.