About this set: The Spencer Collection includes a Pattern Mule Half Sovereign, dual dated 1829 / 1823. George IV Bare Head, Reeded Edge, WR-253. The obverse is dated 1829, paired with an 1823 dated reverse of the style used for WR-245: Crowned garnished shield and the legend "ANNO 1823" at sides. A most important and unusual coin, and of special allure because no regular-dies 1829 half sovereign was ever struck. A great rarity, R7: only 2 known, the other impounded in the Royal Mint Collection, thus unique in private hands. Ex Terner, Graded PCGS Proof 63 Cameo. Mike Byers, a rare coin dealer, described this coin, once in his inventory for sale @ $75,000.00, as follows: One of the most spectacular mint error mules of all time. The obverse of the regular design of the George IV Bare Head Half Sovereign was paired with an 1823 pattern reverse.
No 1829 Half Sovereigns were ever struck.
One of two known. The other piece is impounded in the Royal Mint Collection.
Dual Date with different dates on obverse and reverse.
No other gold mules are known, mint state or proof.
An extreme rarity with a great history and pedigree.
Comparable to a U.S. numismatic rarity that sells for high six figures or more with only a few known and one impounded in the Smithsonian.
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