The May issue of Stamp Magazine, on sale from April 13, includes these great features:

The greatest collection ever?

Philipp von Ferrary had the determination and the means to amass most of the world’s great rarities. A century after his death, we reassess his legacy  

1967 British Wild Flowers issue

The artistry of a celebrity botanist and the singlemindedness of a new Postmaster General combined to create one of the best-loved British special issues, exactly 50 years ago  

Australia’s king of covers

John Gower did more than anyone else to popularise first day and commemorative covers in Australia, turning a small post office in an obscure Adelaide suburb into a philatelic hot-spot

Commonwealth Classics

A combination of two powerful Arabian motifs made Aden’s 1937 first issue an iconic design 

Forgotten Countries

The desert buffer zone in the western Sahara which issued stamps and become an airmail hub  

GB Themes

How artists’ paintings and sculptures have contributed to portraiture on British stamps