Mahatma Gandhi's most expensive postage stamp | Mintage World’s Hidden Treasures

Hidden Treasures unfolds the mystery of the Mahatma Gandhi ‘Service’ overprinted stamp of India that set a world record!

Hidden Treasures is a series of mini-documentaries which holds the gems of notaphily, numismatics and philately industry. With the help of the newly established online museum,, this series discloses information about the most expensive and exquisite stamps, coins and notes sold across the world.

Promoted by the “Ultra” group, is the first website of its kind in the world, where all the three fields have been brought under one roof.

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