"Issued in 1972 in a set of seven, the stamps are miniature, one-sided, 33 1⁄3 rpm vinyl records playable on a standard turntable. You peeled off the backing paper and stuck them on an envelope or postcard. Content includes Bhutanese folk songs and histories of the country in English and Dzongkha, the local language. "<p>I work in IT. I used to be a philatelist (can you stop?). How on earth did I never think of this.<p>It makes those bloody awful business card CDs (off of the 90s n noughties) look pretty naff.<p>Barking mad and quite beautiful. Love it!