The coin would no longer be legal tender in Ireland. As far as being of interest to collectors, it 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.
It's still worth two pounds, which converts to $3.41 in US dollars (as of 21 July 2014).
a gold coin
An Irish "Millennium" coin, with a face value of one Irish punt (or "pound"), is worth about US$7.50 in Uncirculated condition and about US$8.50 in Proof.
In us Dollars a 5 florin coin would be worth about 8-10 dollars if it is in mint condition
The value of this coin varies based on quality. An coin of average circulation is worth about two dollars. A well preserved coin is worth approximately five dollars. A completely uncirculated coin can be worth as much as forty dollars.
It's an ordinary circulation coin worth, well, $2.
It is worth about 600singapore dollars to 1000singapore dollars
A 1848 five dollar coin is worth about 1,600 dollars to about 2,100 dollars. A 1848 five dollar coin has been auctioned for over 71,000 dollars.
No such coin
That depends on the condition and the denomination.
Ireland does not use the dollar and never has, so there is no such thing as an Irish 1 dollar coin. Ireland was using the pound in 1952, but there was no 1 pound coin. So whatever coin you have, cannot be either an Irish one dollar coin nor an Irish one pound coin from 1952.
Between1.30us dollars to 8.00 us dollars