Clepsydra (water clock), Canton
University of Bristol - Historical Photographs of China reference number: JC-s020. This water clock was first made in about AD 1324, and was destroyed and restored many times. It was housed in the Double Gateway in the old city, Canton (Guangzhou). Water dripped from one copper bucket to another, over a twelve hour period. A float on the lowest bucket indicated the approximate time of day and this time was exhibited on a board outside the building. The words on the buckets mean: Do not touch. The notice on the left is from the National Government of China. It requests that the buckets should not be touched as they are from the Southern Han Period (917-971). On another post card, this clock was described as the 'The Water Clock of the King Pak Tower, Canton'. See JC-s006.
Black and white photograph