As part of the process, China Post issues sets commemorating various elements of Tibetan culture, for which Yunnan is famous.  In 2009, it issued this group of 25 cards with a Tibetan clothing theme.  The cards measure 4″ x 7-1/4″ and have pre-printed, coloured 80 fen postage.  Our scan shows the front cardboard cover and one of the cards.  It looks like about as comprehensive review of Tibetan costumes as you could ever find.  Captioning everywhere.  Grade: 1