Eugène Piron (1863 – 1929)
26 June 2020
The only face that appears on both photos. They don’t seem to be taken very closely to each other. Piron was Grandmaster of the international order of mixed gender Freemasonry Le Droit Humain from 1918 to 1921 in which capacity he organised the first international convent in 1920 or 1921. In 1922 he founded the French federation. My guess is the photo on the left is from 1920/1 and the one on the right from 1922.
More about Piron here.