This 1965 issue from Ajman commemorates the London International Stamp Centenary Exhibition, celebrating 100 years of postage stamp history. The set reproduces legendary rarities from the 19th century, including Austria’s 1856 Scarlet Mercury, Canada’s 1851 12 Pence Black, and Mauritius’s 1847 Two Pence Blue. Each stamp also features a miniature of the 1965 “Elizabethan” design, symbolizing the continuity of philately. Beautifully printed with Arabic inscriptions, this set is a favorite among thematic collectors of classic world issues and exhibition commemoratives.