1 March 2007
Royal Mail's The World of Invention stamp issue comprises of six self-adhesive stamps featuring landmarks in engineering and technology. Each of the inventions is illustrated in by Guardian cartoonist Peter Till in his own whimsical style with formatting and typography by Peter Willberg.

In the ordinary sheet form these stamps are self-adhesive, but in this PSB they are with conventional gum, and in se-tenant pairs which are not the same as those in the miniature sheet.