Such a coin does not exist.
The Eire Florin (Two Shillings) did not enter the Irish currency until about 1928.
The last Eire (Irish) Florin (Two Shillings) was minted in 1968. They circulated side by side with the equivalent larger 10 Pence coin until 1994 when they progressively withdrawn from circulation.
All Eire (Irish) Florins from 1928 to 1943 inclusive had a silver content of 75%.
There was no Eire (Irish) 1960 Penny produced.
There was no 1939 Eire (Irish) Penny minted.
There were no Eire (Irish) 1957 Shillings minted.
An Eire (Irish) 1961 cupro-nickel Florin (Two Shillings)(salmon), uncirculated and in absolute mint condition could fetch up to £60 GBP. If it has been circulated but still in good condition, it might fetch anything from £1 to £13 GBP. An Eire (Irish) 1961 cupro-nickel Florin (Two Shillings)(salmon)(Proof FDC), uncirculated and in absolute mint condition could fetch up to £350 GBP. A reputable coin dealer will be able to give a more accurate valuation.
The last British Florin was minted in 1970.
The first British Florin was introduced in 1849.
There was no 1861 British Florin (Two Shillings) minted.
The last New Zealand Florin was minted in 1965.
The last British general circulation Florin was minted in 1967.
The last British Florin minted for general circulation was minted in 1967.