hi only found this blog today so looked in my pocket and had 2 1992 10p and one was a dot to dot one, how much is it worth? and the other one the letters l,i,a were set inbetween the dots, is that rare? and also ive just been to the shop and in my change got a 1988 £1 with the sheild on what is the value of that one please. i have had the 1988 £1 many times but never knew it was rare