Photo of teachers at South China Institute of Technology (currently <a href="https://en.wikipedia.org/wiki/South_China_University_of_Technology" class="extiw" title="en:South China University of Technology">South China University of Technology</a>) in 1956
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external free" href="https://mp.weixin.qq.com/s/NCmllPpwVRvTlo1a27aWpQ">https://mp.weixin.qq.com/s/NCmllPpwVRvTlo1a27aWpQ</a>