ocr: Chank - - ShellTrumpet THIS ORNATE TIBETAN - - trumpet, created from a chank shell, is a treasure of both nature and culture. The shell- the white part of the trumpet- was originally part of a marine snail (Turbinella pyrum) from the Indian Ocean. At an unknown date it was fished out of the sea and used as an item of trade, ending its journey in the mountains of Tibet. Around 1400 it was transformed into a trumpet and used in reli- gious rituals of Tibetan Buddhism that, like the shell, came to Tibet by way 13 3333333099XU00000384090404040344E 0129090090000DCMACUMAVIRUINNULITCUNECU