What is the value of a 1957 Elizabeth II silver 10 Shilling coin?

Answer 1

Anything minted for circulation in the 1970s would be copper-nickel, not silver.

You'll need to provide different information. The "dg reg..." motto appears on ALL coins of the British commonwealth so that doesn't help ID it. If it has a country name on it, that's important. If it doesn't and says PENCE instead of CENTS, that's important too.

However, the bottom line is that any commonwealth coin with that value is going to be worth very little because it almost certainly is or was a common circulation coin.

Answer 2

The Royal Mint has never produced a Ten Shilling coin. The Ten Shilling denomination was a Bank of England banknote.

The only coin equivalent to Ten Shillings was the Half-Sovereign which was made from 22 carat gold. Half-Sovereign coins were not minted from 1938 to 1979 inclusive.