The easiest way is to buy it. You can go to a coin shop or buy them on eBay.
There were 29,098,000 1930 British Pennies minted.
The first penny loafers was made in 1930
1930
about $100
1 penny
Penny McGuiggan was born on June 12, 1930, in Illinois, USA.
20 bucks
Then it's not a US coin.
US Lincoln cents dated 1930 in the average circulated grades are 10 cents to $1.50.
The cast of Belle of the Night - 1930 includes: Frank Morgan Penny Singleton
between $.20 and $28 depending on the quality
If you are convinced that you have a genuine Australian 1930 Penny, a reputable coin dealer will be able to give an accurate valuation and provide authentication and verification. Do be aware that there are legal replicas or copies of these coins as distinct from forgeries.