Hi all,
Can anyone tell me which set of stamps the attached image is from?
I have not collected G.B. commemoratives for a few decades and am out of touch.
The most up to date source I have is the British Stamp Market Values 2012 edition but I cannot pin it down in that book.
I cannot even seem to find a 77p value anywhere amongst all the 1st, 2nd, 78p and 82p
For some reason this is bugging me and if anyone knows the issue date or series of
stamps
I would be obliged.
I know there must be 77p values around as I read on line that it was the Recorded Delivery fee at one stage.

Thanks in advance for any help.
Ron.