A one cent stamp from British Guiana. No not that one, this is worth a bit less money, but I bought this to celebrate the fact that I do now own 1/80,000th of the rarest most valuable item by weight in the world. To celebrate my acquisition I popped up to London to view the item itself, the famous British Guiana 1c Red Magenta. Here's an arty (or crap depending on how you look at it) photo of the stamp (worth about £8mil) with my ghostly reflection. On this same day, I tracked down the location of Bob Dylan's Subterranean Homesick Blues video and visited St Martin's in the Field where Robert Boyle (of Boyle's law, very important in diving) is interred.
