They would have very little value. Denominations of those coins were being used until the end of 2001, before the Euro came in at the start of 2002. Many Irish people would have kept some of the old coins, so they are far from being a rare item and of any real value as a collector's item.
1990 was the first year of issue of the Eire (Irish) One Punt (One Pound) coin.
Such a coin does not exist. The Eire (Irish) 10 Pence coin was first introduced into the currency in 1969.
The first Eire Punt (One Pound) coin was minted in 1990, the last was minted in 2000.
The face value of any coin is what is inscribed on the face of it. The face value of a 1 Penny coin is 1 Penny.
An Eire (Irish) cupro-nickel Punt (One Pound) coin, uncirculated and in absolute mint condition could fetch up to £5 GBP. A reputable coin dealer will be able to give a more accurate valuation.
Such a coin does not exist. The Eire Florin (Two Shillings) did not enter the Irish currency until about 1928.
The Eire (Irish) Punt (Pound) coin was first issued in 1990.
Such a coin does not exist. Decimal currency was not introduced until 1971, including the 2 Pence coin.
Such a coin does not exist. The last Eire (Irish) Halfcrown was issued in 1967. The Halfcrown was withdrawn and demonetised after the introduction of decimal currency in 1971.
Please check that date again. Ireland (Eire in Gaelic) did not use decimal denomination coins until 1970, and in any case, the country was under British rule in 1861 so a coin from that date would not have its inscriptions in Gaelic. Look at the coin again"Eire" is read while it is at the top of the coin. If you rotate the coin so that the numbers are at the top you will see that the date is actually "1981". The Irish (or Eire) 50 Pence coin was not introduced into the currency until 1970.
All Irish coins have the word "Éire" on them. The value depends on the condition and the denomination.
These coins are no longer in circulation since Irelands changeover to the Euro in 2002. Unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they have little or no value.