The photo of the dictionary used by <a href="https://en.wikipedia.org/wiki/Sun_Yat-sen" class="extiw" title="w:Sun Yat-sen">Sun Yat Sen</a> in the College of Medicine for the Chinese, Hong Kong. Sun Yat Sen is the father of China and died at 1925, therefore the photo must be in public domain.
Sun Yat-Sen In commemoration of the 130th anniversary of Dr. Sun's birth. Edited by Shanghai Museum of Sun Yat-Sen's Former Residence.