Penny sells for £72,000 and is now the most expensive copper coin

Coin which is one of four in existence sold at auction after fierce battle between two bidders

Lincoln Cent Collection Realizes $7.7 Million

Rare 1p coins - have you got a penny worth a fortune? - Mirror Online

1933 Penny Sets World Record for Copper, Bronze Coin at Auction

Indian Numismatic Lovers

How much is a 100 year old penny worth? - Quora

Rare 1933 penny brings record $103,000 at Baldwin's

1961 Lincoln Pennies: Rare Pennies to Find and Worth Millions

Two rare pennies sell for nearly $870,000 at auction – Orange

Eight rare coins and stamps worth an absolute fortune - MyLondon