A Royal Dutch Mint 2020 coin celebrates the centennial of a technological improvement that had a dramatic impact then and now on preserving Dutch land from floods.

The latest Proof .999 fine gold $10 coin from the Royal Canadian Mint uses native gold and a native-inspired design by an Inuk artist, and is available individually, a first.

The works of prolific mystery writer Agatha Christie are honored with a number of issues from the Royal Mint on the occasion of the British writer's 100th anniversary of first being published.

A highly esteemed collection of encased postage put together by Drs. Joanne and Edward Dauer will be offered in a fall sale, including 90-cent issues, the highest denomination created.

The America the Beautiful quarter dollars series ends in 2021 with a single coin. After that, a single "permanent" design will be released, unless Congress acts on legislation currently under review.

The RAM offers the third issue in its Shipwreck series of triangular 1-ounce .999 fine silver $1 coins, depicting the Dutch East India ship "Zuytdorp" that disappeared in 1712.

In a September meeting, the Commission of Fine Arts approved designs for a gold medal recognizing the work of U.S. Mint director David J. Ryder, which collectors will see in a bronze duplicate.

Notes in denominations of 'debris' have been issued by "the Trash Isles" to draw attention to ecological plight of rubbish deposited in the world's waterways with the bills depicting distressed wildlife.

Heritage Auctions offered part one of the Bob R. Simpson Collection on Sept. 17 with 349 coins, led by an 1894-S Barber dime, with additional excitement for a 1795 Flowing Hair dollar.

A rare fantasy issue struck in London featuring the last monarch of the Kingdom of Madagascar can become part of a new collection when offered for sale in the Netherlands in October.