HomeUS CoinsUnique Pair of PROOF Uncancelled Martha Washington Dies

Unique Pair of PROOF Uncancelled Martha Washington Dies

Used to Strike Half Dollar Experimental Test Pieces for U.S. Judd #2131-2143
NGC Certified & Encapsulated   —   UNIQUE in Private Hands

Uncancelled Martha Washington Proof Dies
Photo by Mike Byers – CoinWeek.  –  This is the only known set of PROOF Uncancelled Martha Washington Half Dollar-sized dies in private hands.

Martha Washington dies were used by the U.S. Mint and contracted vendors for experimental testing.

Martha Washington dies have become the U.S. Mint’s all-purpose design for testing new compositions, surfaces and planchet sizes. These experimental strikings were conducted both inside the Mint and outside by companies contracted by the U.S. Mint. Companies within the United States included IDX Inc., PMX Industries, and Olin Brass Corporation, while Schuler AG in Germany struck coins overseas. [Schuler AG supplies Schuler coin presses to the United States Mint for striking our coinage.] 

These PROOF Uncancelled Martha Washington Half Dollar-sized dies are featured on the cover of Mint Error News Magazine Issue #86.

Minter Error News Magazine

There are only two other Martha Washington Half Dollar-Sized Uncancelled Dies known in private hands, and those struck mint state test pieces. The first one discovered was featured both in CoinWeek and on the cover of Mint Error News Magazine Issue #44 (Spring 2018).

Obverse Die for the Martha Washington Proof
Photo By Mike Byers -Obverse Die

Martha Washington dies have “fantasy designs” intended to avoid creating rarities with regular coinage motifs.

The design of these proof dies was used by the U.S. Mint for metallurgical testing beginning in 1965 until 2011 when the dies were redesigned.

The obverse features a bust of Martha Washington, with the inscription “VIRGINIA” above and the date “1759” (the year she married George Washington) below.

Reverse Die - Martha Washington Proof
Photo By Mike Byers – Reverse Die

The reverse typically features an image of Mount Vernon. These Martha Washington proof dies and test pieces are featured in the U.S. Patterns website (uspatterns.com).

This unique set of PROOF Uncancelled Martha Washington Half Dollar-sized dies belong in a premier collection of U.S. patterns or unique numismatic treasures. These dies are part of the U.S. Mint’s history of experimenting and striking pattern coins prior to producing our nation’s coins for circulation.

NGC Certified Die Holder for the Obverse Die
Photo by Mike Byers – NGC Obverse Die Holder

The story of the Martha Washington dies and test strikes, as it unfolds, is one of the most interesting numismatic developments in decades.

Do you have any tips or insights to add on this topic?
Share your knowledge in the comments! ......

Mike Byers
Mike Byershttps://minterrornews.com/
Mike Byers is the Owner, Publisher and Editor of Mint Error News Magazine and the Mint Error News website that was founded in 2003. In 2009, Mike Byers published his first book, World's Greatest Mint Errors, which received the NLG Award for Best World Coin Book.

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62 COMMENTS

  1. While I wouldn’t reasonably expect fully-uncancelled dies like these to make their way into the hands of the public, I do wish they had another way to cancel them that didn’t completely obliterate the surfaces.

  2. I found this article about “test” dies very interesting as I did not know that was part of the process. These Martha Washington dies are not only visually appealing but part of the unique story about how US coins are minted.

  3. That’s facinating. I always wondered exactly how they tested new patterns for all the coin designs being produced. So…a Mint employee runs into his Manager’s office and says “Hey boss, we’re ready for test strikes now!” Boss says: “Okay Jimmy, better break out the “Martha’s”! :D

  4. Martha Washington dies have “fantasy designs” intended to avoid creating rarities with regular coinage motifs. Did not know the Mint did this but it does make sense.

  5. Who and how were these dies actually sold? Did the US mint advise its customers? Very interested in understanding how only a couple of people could own these?

  6. These are quite interesting, thanks for the article! It’s neat to learn more about the history of minting and see rare and unique collections.

  7. What a cool finish. The fantasy design , I need to learn more about this industry. Just started collecting. Having fun learning all about it!! Mike

  8. A unique rarity for sure. Would love to see it in person for sure. Great that CoinWeek gets to see these type of things and share with us.

  9. These dies and definitely unique but not they would be considered an error. But unique enough to be featured in the error newsletter.

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