Jingwu Damo Jian and Applications

This set was created in the 1930 by Jingwu Headcoach Zhao Lianhe( a Master of Er Lang Men other sources state him as expert of Xingyi and Tantui) and Chen Tiansheng( Is this the same person as Chen Zizheng? If so then he was a master of Ying Zhao Fanzi Men). Maybe a brief overview on the Shanghai Jingwoo Martial Arts Association. It was founded by the Famous Mizong Master Huo Yuan Jia(霍元甲) around 1909-1910( There a different source pointing to the one or the other date). The purpose of Jingwu was to