Not much, the old 10 pence coins usually sell for about a quarter or so in the US, the 10p coin was reduced in size and so the old large ones (the size of a Florin) are demonetized, but they still sell for about the equivalent exchange rate in the US.
However, I believe you got your date wrong as there are no British (or Irish) 10p coins dated 1966. The equivalent coin minted in 1966 would be the Florin, worth 2 shillings.
How much is the coin worth
1964 was the last year for silver Roosevelt dimes. The "star" was added after the coin was struck at the Mint and is not a rare collectible coin, but it's still 10 cents.
The value of a John Glenn coin can vary depending on factors like its condition, rarity, and demand among collectors. As of now, a John Glenn coin may typically be worth its face value or slightly higher if it is part of a collectible set or in mint condition. To determine the specific value of a John Glenn coin, it is recommended to consult with a coin dealer or appraiser.
A 1957 50 ptas coin with a star and a 59 marking is not considered rare and typically has no additional value beyond its face worth. In general, a 50 ptas coin from 1957 would be worth a few cents in US currency.
The value of a 1969-1989 first man on moon coin can vary depending on factors such as its condition, rarity, and demand among collectors. Generally, these coins can range from a few dollars to over a hundred dollars. It is recommended to consult with a coin appraiser or collector to determine the specific value of your coin.
Such a coin does not exist. The 50 New Pence coin was first issued in 1969.
20 pence
In the United kingdom it would be worth 10 pence. In the USA it would be the equivalent of about 16 cents
All years of issue of the British 20 Pence coin are still in circulation and are worth 20 Pence in Britain and its dependencies. As at 14-May-2012, 20 Pence British is worth about $0.32 USD.
Assuming it's a current British 2p coin dated 1968 or later, in average condition it's only worth face value - roughly US 3¢
2 Pence coins are not used as commemoratives.
The British Ten Pence coin was not issued until 1968.
The groat was a silver coin worth four pence, but it hasn't been produced for circulation since the 1850s.
its worth $5.00
A bank will only ever give you 20 Pence for a 20 Pence coin.
The 50 Pence coin is still in use. It is equal to half a pound (GBP).
its worth $5.00