Mine workers (explosives team) at the Tangshan colliery

University of Bristol - Historical Photographs of China reference number: PC27-297. A group photograph of mine workers (explosives team), with their kit, at the Tongshan colliery. There are two European foremen standing at the sides. In the picture can be seen a wooden case marked ‘SIEMENS EXPLODER’, which was described in detail by Kinder in a paper entitled ‘Notes on Electric Blasting in China’, published in Volume LXXX of the Proceedings of the Institution of Civil Engineers. Another wooden case is labelled TENSION.