They are not rare or especially sought after. A coin in reasonable condition might get $2 to $8 AUD.
0.15-0.50 $
There was no 1939 Eire (Irish) Penny minted.
The value of a 1939 German penny with a swastika can vary depending on its condition and rarity. Generally, these coins are considered controversial and are often collected for historical interest rather than monetary value. It is advisable to consult with a coin collector or appraiser for a more accurate assessment of its worth.
There is no such thing as a 1939 Roman penny. Rome fell in 476.
There is no Australian "cent" from 1939. Decimal currency was introduced in Australia in 1966.
Coin Collector
Australian College of Optometry was created in 1939.
The Western Australian Naturalist was created in 1939.
Australian Boys' Choir was created in 1939.
Australian marbled catshark was created in 1939.
1939 is a common date wheat penny, most coins in average condition are valued at 3 to 10 cents.
You can list it on eBay or sell it privately to a collector.