https://www.youtube.com/watch?v=3giFDj1bee4
鄭榮光(吳鑒泉之入室弟子) Wu Style Taiji Sword by Zheng Rong Guang (Inside disciple of Wu Jianquan)
https://www.youtube.com/watch?v=v_AU2AOCaEU
鄭杜燕庭女士 (鄭榮光媳、鄭沛錤妻) 演示鄭榮光吳家太極劍
Cheng Wing Kwong Wu Style Tai Chi Sword Performed by Mrs Cheng To Yin Ting who is Cheng Wing Kwong's Daughter-in-law / Cheng Pui Ki's wife.