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

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

What are the most expensive coins? - Quora

What's a Penny Made Of?

Massachusetts Authorized Cents and Half Cents – 1787 – 1788 - APMEX

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

1933 British pattern penny sets new record

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

The 19 Most Valuable Pennies Ever Sold

Top 15 Most Valuable Indian Head Penny Worth Money

How much is a penny from 1850 worth today? - Quora

Eight rare coins and stamps worth an absolute fortune - MyLondon