The Great British Motorcycles set celebrates innovation in a new Isle of Man Post Office collection, incorporating both artwork and classic archive images.
Among those featured are some of the greats: Harold Daniell, who raced the Manx Norton Single and was a three-time TT winner both before and after World War One, and Freddie Dixon, known as 'Flying Freddie' after his victories in the 1920s on both solo machine and sidecar.
The ground-breaking engines in the issue include the iconic Norton 'Manx' from the early 1960s, the four-cylinder, supercharged, air-cooled V-four AJS and the Excelsior Manxman, a machine at the forefront of road racing in the 1930s.