Occasionally, the Royal mint has a mix up with the dies or the blanks used to produce coins.
It is possible that the 10 New Pence dies were used on a 2 New Pence blank.
If this is the case, part of the 10 Pence coin design will be outside the perimeter of the 2 Pence blank, the 10 Pence coin being slightly larger than the 2 Pence coin.
Alternatively, you may have a trick coin available from magic shops.
From the introduction of decimal currency in Britain until 1981, all decimal coins, except the 25 Pence coin, had the words "NEW PENCE", "NEW PENNY" or "NEW HALF PENNY" inscribed across the top of the reverse, with a numeric value at the bottom. The use of the word "NEW" was intended to assist with the distinction between old and new currency. From 1982 onwards, the "NEW" was dropped. There was a little minting accident in 1983 on the 2 Pence coin and a number of coins were struck with the word "NEW" on them.
Pence is the plural of Penny, so you have One Penny or, Two Pence, Five Pence, Fifty Pence, etc. From the introduction of British decimal coins in 1968, the new currency was designated as "New", ie. 1 New Penny, 2 New Pence, etc. until 1981. From 1982 onwards, the "New" was dropped.
If it is a "Silver" coin, it will say so on the case it came in.
The British "New Penny" was first issued in 1971, along with the Two New Pence and the Half New Penny. From 1982, the "New" was dropped and the coin was known as the 'Penny" again. This is true for all British decimal coins, the word "New" no longer being used from 1982.
Yes, if he said it sometime since 1998. The larger pre-1997 50 Pence coins were withdrawn from circulation and demonetised in 1998.
peniques
It's the same as English.
cinquante pence
When Australia used Pounds, Shillings and Pence, it was pronounced "pence", the same as in Britain where the currency originated. Since the 14th of February, 1966, Australia has used Dollars and cents.
There is one cent is one penny.
Without knowing the denomination, mint mark date or condition, it's impossible to say. Please post a new question with the coin's denomination.
Pence, as a unit of currency of the British Pound is the same in German. It is derived from the Old English Pennig and has the same etymological root as the now defunct German Pfennig.