There was no Eire (Irish) 1960 Penny produced.
There was no 1939 Eire (Irish) Penny minted.
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.
At least £30,00 as there were only about six made, and they were used in foundation-laying ceremonies of buildings.
29 cents
No. Eire is the Irish for Ireland. Pingin is Irish for Penny.
It's worth 2 cents for the copper content.
face value
There were no Eire (Irish) 1957 Shillings minted.
It's only worth face value.
2 cents, due to copper content.
An Eire (Irish) 1946 bronze Penny (chicken), uncirculated and in absolute mint condition could fetch up to £15 GBP. If it has been circulated but still in good condition, it might fetch anything from £2 to £4 GBP. An Eire (Irish) 1946 bronze Penny (chicken)(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 only "silver" penny was minted in 1943 to support the war effort. Yours is probably zinc plated.