A rare early Victorian coin less than a millimetre thick sold at auction for a "phenomenal" £1,600, auctioneers said. The 1838 gold half sovereign, with a diameter of 19.3mm, was handed for sale ...

An 1887 Canadian penny in excellent shape with Queen Victoria on it sold for more than $17,000 in 2010. 1921 Canadian Penny Heritage Auctions, HA.com ...

Some 1953 Canadian coin sets experienced an unusual shoulder fold that has made them desirable among collectors, often fetching thousands.