HomeUS CoinsPCGS: Analysis Confirms Two More Virtually Pure Copper Judd-2 1792 Pattern Cents

PCGS: Analysis Confirms Two More Virtually Pure Copper Judd-2 1792 Pattern Cents

Professional Coin Grading Service (PCGS) recently had the unique opportunity to perform metallurgical testing on two different examples of the extremely rare 1792 Pattern Cent. Both were shown to have been made of essentially pure copper instead of a “fusible alloy” containing copper and a small portion of silver.

“The results give a clearer picture of how the U.S. Mint experimented on the earliest American coins in preparation for official coining in 1793. At least three of the nine known 1792 Cents originally designated as the Judd-2 variety now are confirmed to be composed of virtually pure copper,” said Ron Guth, President of PCGS CoinFacts.

“This represents a major step forward in our understanding of early American numismatics, plus it was the first time these two rarities have been together in 224 years. Working with the owners of the two 1792 cents, PCGS arranged for an in-house, non-invasive metallurgical analysis of their coins,” explained Guth.

Weinberg 1792 Pattern Cent Judd-2
This 1792 J-2 pattern cent, owned by California collector Alan Weinberg, is nearly pure copper according to PCGS (Photo credit: PCGS CoinFacts).

One of the recently tested Judd-2 cents has been owned by collector Alan Weinberg of California since 1988 when he purchased it at a Bowers and Merena auction. Its pedigree includes the Lorin G. Parmelee, Virgil Brand and Norweb collections. Although uncertified, PCGS estimates its grade as EF45, making it the second finest known.

The other recently tested coin, graded PCGS VF35, was unknown until 2004 when the Wolcott family from southwestern New York State brought their inherited coin to the American Numismatic Association (ANA) World’s Fair of Money in Pittsburgh, Pennsylvania. It was certified by PCGS and its discovery generated nationwide headlines. Owners since then have included Anthony Terranova, Denis Loring, Legend Numismatics and Bob R. Simpson. The coin now is owned by a collector who wishes to remain anonymous after purchasing it through Heritage Auctions this past January.

A third Judd-2 1792 cent, confirmed to be pure copper, is in the American Numismatic Association Edward C. Rochette Money Museum collection, and graded Good. Early United States Mint engraver Henry Voight, who also created the 1793 Chain and Wreath cent varieties, designed the Judd-2 variety.

Judd refers to the book, United States Pattern, Experimental and Trial Pieces, a reference guide authored by Dr. J. Hewitt Judd. Coins listed in the book are classified by Judd numbers, including J-2, the current designation for 1792-dated cents made of pure copper.

Wolcott 1792 Pattern Cent, Judd-2
PCGS has confirmed the Wolcott 1792 J-2 cent is essentially pure copper (Photo credit: PCGS CoinFacts).

“1792 saw a flurry of activity aimed at establishing a mint in the United States. Congress passed a Mint Act, a Director was chosen, a parcel of land was purchased, a building was erected in Philadelphia and employees were hired,” explained Guth.

“Several one-cent denomination coins were tested that year: a large copper piece known today as the Birch Cent (Judd-4); a smaller copper piece with a silver center (Judd-1); a piece of similar size in pure copper (Judd-2); and a piece of similar size with the copper and the silver center cent melted together into what is known as a ‘fusible alloy’ (Judd did not create a separate listing for such a coin).

“Mint records point to their experiment with fusible alloy cents, but none have been confirmed to date (one example tested years ago showed a small fraction of silver, but the margin of error of the test precluded a positive determination).”

The search for a real Fusible Alloy cent continues.

“Hopefully,” concluded Guth, “testing of the remaining 1792 cents will reveal the true nature of these remarkable coins.”


Now celebrating its 30th anniversary since its founding in 1986, Professional Coin Grading Service has become the industry standard in third-party certification. With offices in California, Shanghai, Hong Kong and Paris, PCGS experts have certified over 32 million coins with a total market value of over 30 billion dollars.

For additional information about PCGS products and services, call 800-447-8848 or email [email protected].

Certifying coins since 1986, Professional Coin Grading Service (PCGS) is a division of Collectors Universe, Inc. (NASDAQ: CLCT), a leader in third-party authentication and grading services for high-value collectibles including rare coins, trading cards, tickets, autographs, memorabilia, and stamps.

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