How much is a UK half pence worth
There were no British 1979 20 Pence coins minted.
India
How much is a UK half pence worth
2 British Pence in 1979 had the equivalent value of about 1 cent USD.
Your description is applicable to every British coin issued in 1979. On the same side of the coin you read "New Pence", there will be a number indicating "how many" New Pence. The 1979 British 1/2, 5, 10 and 50 New Pence coins have long been withdrawn from circulation and have little or no value unless they are in mint condition, and even then, not much. The 1979 British 1 New Penny and 2 New Pence coins are still potentially in circulation, so are worth 1 and 2 Pence respectively, unless they are in mint condition, and even then, not much.
The last issue (1979) mint uncirculated 50 Pence note from the Isle of Man is worth $15. All used notes are worth exactly 50p ($0.75). This note is blue. The only other issue of this note was in 1972, coloured purple, with different signatures; Stallard : $60 Paul : $30-35.
Yes, it is only worth face value.
It is worth face value unless it is uncirculated.
A 1979 Susan B. Anthony coin is worth 1 dollar (face value) still to this day unless in a condition that is UNC.
It is worth face value unless it is uncirculated then it will be worth around 50 cents.
Yes, it's worth its face value.