Great Britain 1964 3 pence
The first specimen was lot 34183 in Heritage sale 3082 (New York, January 2020), where it sold for $336. The catalog description[1] noted, "Great Britain: Elizabeth II Mint Error - Wrong Planchet 3 Pence 1964 MS64 PCGS. Struck on 4.6 g copper nickel planchet." The brass threepence was introduced in 1937 but the silver threepence was struck for circulation until 1944. The silver threepence is still struck for the Maundy sets; in that sense, it has outlasted the brass threepence, which was retired in 1970. This type, struck 1954-70, is common in all grades. The portcullis was the badge of the Tudors.
Recorded mintage: 47,440,000 plus proofs.
Specification: 6.8 g, nickel brass (79% Cu-20% Zn-1% Ni), 21.74 mm diameter, designed by Mary Gillick.
Catalog reference: S-4153, KM 900.
- Michael, Thomas, and Tracy L. Schmidt, Standard Catalog of World Coins, 1901-2000, 47th ed., Iola, WI: Krause Publications, 2019.
- Lobel, Richard, Mark Davidson, Allan Hailstone and Eleni Calligas, Coincraft's Standard Catalogue of English and UK Coins, 1066 to Date, London: Coincraft, 1995.
- Skingley, Philip, ed., Standard Catalogue of British Coins: Coins of England & the United Kingdom, 46th edition, London: Spink & Son, 2011.
- [1]Bierrenbach, Cristiano, Warren Tucker and Sam Spiegel, Heritage World and Ancient Coins Online Auction 3082, featuring the Caranett Collection, Dallas, TX: Heritage Auction Galleries, 2019.
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