What is the value of a 1939 Eire Penny?

The value of a 1939 Eire Penny depends on its condition and grade. According to the International Guide Book of British, Commonwealth and Irish Coins (2015 edition), the following are the approximate values for a 1939 Eire Penny:

Fine: £1 - £2

Very Fine: £3 - £5

Extremely Fine: £8 - £12

Proof: £15 - £30

These values can vary depending on market fluctuations and the specific condition of the coin. It's always advisable to have your coin professionally appraised to determine its exact value.