Above image from www.baguaplam.com, taken 23rd December 1934 at Ghangzhou (廣州) government house, shows Yang Cheng Fu (front row, center) beside Fu Chen Sung (front row, to the left of Yang Cheng Fu).
Fu's favourite weapons were the pa kwa broadsword (pictured above) and the spear.
Photos below from the Pa Kwa Chang Journal.
Plum publications: CD ROM of the Pa Qwa Chang Journal
Fu once demonstrate using the stone by bouncing it repeatedly from his chest into the air. When one of his students asked to learn this, he refused, saying the student would end up breaking his ribs trying to.