PSB: World Changers - Pane 4 Stamps
These Royal Mail stamps were affixed to specially designed envelopes and postmarked on the first day that the stamps were issued.
21.09.1999 | Alan Turing, Postmarked at PaddingtonBUY NOW £40
Prestige Stamp Book - Pane 4
Why not take a look at other items on a similar theme?