1970-S Proof Washington 25¢
Overstruck on 1898 Liberty $5 Gold Coin

8.3 Grams


This U.S. GOLD QUARTER is far and beyond the most incredible modern U.S. mint error ever to be discovered. The closest six figure modern U.S. mint error is the famous $1 Sacagawea/Quarter Mule, of which there are over 20 known and sell for between 100k and 250k.

This Proof Gold Washington Quarter was overstruck on an 1898 $5 Liberty gold coin. Under magnification, the date (1898) is fully visible on the reverse above the words QUARTER DOLLAR. Part of the detail from the $5 Liberty design is visible on both the obverse and reverse. It is in gem proof condition and it is amazing that after 50 years, it still looks like it was struck yesterday.

Proof coins are struck by technicians who hand feed the blanks into special presses. They are produced, examined and packaged using extreme quality control. It is very unusual to find major proof errors. A few broadstrikes, off-centers, double strikes (in collar) and off-metals have been known to be found in sealed proof sets. Proof errors are aggressively sought after by many error collectors.

A very small group of Proof errors recently came from a collection that was auctioned by the State of California. The U.S. Secret Service inspected and released this collection to the State of California determining that it was legal to own. The State of California then auctioned the collection and it has been dispersed since the sale.

There are no equals in the history of modern U.S. coins. This is the only modern issued U.S. coin that was struck as a mint error in GOLD, whether on a blank or previously struck on a U.S. gold coin.

Recently, a U.S. 1913 Buffalo Nickel struck in gold on a $5 Indian planchet sold for $400,000. Also recently, one of two known Pan Pac Half Dollars struck in gold sold for $750,000.

There are also 6 U.S. Indian Head Cents known that were struck on $2½ gold planchets, certified by either PCGS or NGC. These are valued from 250k to 400k and are seldom offered for sale.

This unique U.S. Gold Quarter, authenticated and certified by NGC PR 66, belongs as the centerpiece and highlight of any collection of U.S. mint errors or unique numismatic rarities.



Here is an overlay outlining the 1898 date from $5 Liberty design:


Featured on the cover of Mint Error News Magazine Issue 66: