Sweden: Sting post
In 1995 the Swedish Post had a remarkable action just before Valentine 's Day (February 14). In a newspaper you could cut out a free stamp, which you could use in Sweden to send your Valentine post to somebody.
It was allowed between 5 and 13 February. When you look at the stamp you understand that "Sting Post" refers to the bee which holds a heart. Also you can see that the stamp is cancelled on the last possible day.
by Jan de Crom
taken from "The Postal Bee" 1/2007
Contact Group Bee Philately