1877 Great Britain 1 Penny
Struck on 1/2 Penny Planchet
NGC MS 65 BN
UNIQUE
$7,500

This is a unique and fascinating major mint error from Great Britain. After extensive research, I am not aware of another Great Britain Victorian-era coin struck on a smaller planchet as an off-metal mint error. Experts in the U.S. and Great Britain were consulted, as well as searching through auction house catalogs and reference books.

Instead of being struck on a 1 Penny planchet with a weight of 9.45 grams and a diameter of 30.8mm, it was struck on a 1/2 Penny planchet with a weight of 5.67 grams and a diameter of 25.5mm.

There are many patterns and die trials from Great Britain, some even during the Victorian era, that were struck as off-metals, but these were die trials or test pieces on full size planchets.

This unique Great Britain off-metal is in gem mint state condition with full mint luster and original toning.

It is one of the most dramatic mint errors ever to surface out of Great Britain, a country with extremely strict quality control at the mints. This unique off-metal deserves to be included in the finest collection of mint errors or English coinage.

Featured on the cover of Mint Error News Magazine Issue 87:

Off-Metals are featured in my NLG Award winning book,
World's Greatest Mint Errors.