The book I am currently reading is "The Abominable Man". On page 96 of the Vintage Crime/Black Lizard edition (2009) there is this quote:
Then he looked suspiciously at the stamp. It was rather pretty, with a picture of a bird. It belonged to a series of newly released stamps which, if he understood the thing correctly, guaranteed that letters bearing them would be conveyed with special sluggishness. The kind of sublety so typical of the post office.That speaks as much of early 1970s Sweden as it does of The UK's Royal Mail in 2010.