Waterwheel powered self-acting rice pounder, Tong'an
University of Bristol - Historical Photographs of China reference number: Mx03-088. Cadbury Research Library archive finding number: DA26/2/2/2 (John Preston Maxwell Papers). See also Ba05-103 and Ba05-106. "Tangoa" could be Tong'an (north of Xiamen)?
Caption on mount
Tangoa. Rice hammer.
Black and white photograph
Cadbury Research Library (Special Collections), University of Birmingham