What is the value of a new one penny?

Answer 1

The term "New Pence" was used on British Coins from 1968 to 1981 to make the distinction between the new and old currencies.

In 1970, Britain had not yet fully converted to decimal currency, full conversion was to take place in 1971.

The only "New Pence" coins circulating in 1970 were the 5, 10 and 50 New Pence coins.

These denominations were changed during the 1990's to a smaller coin and the older larger coins were withdrawn from circulation and demonetised.

Unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they have little or no value.

Answer 2

Unless it's uncirculated, no added value.