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.
Related Q&A：
What is the value of an 1861 Eire 50 Pence coin？-Well, determining the value of an 1861 Eire 50 Pence coin can be a bit tricky. It really depends on a bunch of factors, like its condition, rarity, and demand among collectors. If it's in excellent condition with no significant wear or damage, it could be worth a decent amount. But if it's got some flaws or it's not that rare, the value might not be as high. You might need to have it appraised by a professional coin expert to get a precise valuation. Oh, and the market for such coins can fluctuate too, so it's hard to give an exact figure.
