Post by Wittybebop on Jul 25, 2023 0:49:58 GMT
One of my favourite set is the 2001 Nobel peace prize, including the Cross which contains Eucalyptus oil held in place by some kind of gel bubble, however Royal Mail didn't bank on some people having an allergic reaction to the when scratched and burst the content, hence why RM have never produced another Scratch and sniff stamp.
