#54 - Centenary of the Universal Postal Union (1874 - 1974) commemorative stamps issued on the 12th June 1974.
They set was designed by illustrator Rosalind Dease. Each stamp celebrates a different service; 3 1/2p - P&O packet steamer Peninsular 1888, 5 1/2p - First official airmail Coronation 1911 (Farman H.F III biplane), 8p - Airmail blue van and postbox 1930, 10p - Imperial Airways flyingboat (Short S.21 Flying Boat Maia) 1937.
The simplicity of the silhouette style illustrations on the white backgrounds is refreshing and creates a fresh, clean look. I also like how the miniature postmarks add a flash of contrasting colour to brighten up the designs.
For more great stamp designs and other gorgeous items of ephemera take time to sift through the rest of our reference box.