kes hurst

the coins weigh 5.7 grammes each....

Hello... i'm new to this forum and to coins... i've recently been helping a friend to clear outhis dead relatives house and come across a number of these 5 pence coins, with letters from the Royal Mint.. please take a look at the uploaded pictures... apologies for the poor pics of the coins, i have left them in the sealed coin bags.. any help wuth information on these and their value will be greatly appreciated.. thankyou in advance. kieran