Denis Knight Activity Books

Hi Folks,

back in the old days before this internet thingy we had other sources of entertainment and learning and i came across these to books from my childhood.
if you were a kid in the 60’s/70’s you might remember these activity books produced by Denis Knight. i have these two, one about the D-Day Landings and the other is about the “Dambusters”. i have these two as a friend at school (Jon Sutherland) had the same two books so i go them as well.
These books came with a transfer sheet which you rubbed and put the transfer images onto certain pages in each book.
If anyone else has/had these books i would be interested to know which books you have.