The world's most expensive object by weight

At $8.3 million dollars for around 40 milligrams, the British Guiana 1c magenta is the world's most expensive object by weight: it's a postage stamp from 1856, the only one of its kind. More about the stamp and Stanley Gibbons: https://www.stanleygibbons.com/collec... 🟥 MORE FROM TOM: https://www.tomscott.com/ (you can find contact details and social links there too) ❓ LATERAL, free weekly podcast: https://lateralcast.com/    / lateralcast   👥 THE TECHNICAL DIFFICULTIES:    / techdif