Bonjour to all,
Thank you David for your excellent commentaire.
The wonderful painting "Remise Au Senat Des Trophees" by Edouard Detaille (1906/7 ?) , Paul gave the link, was, I suppose, inspired by the drawing :
https://gallica.bnf.fr/ark:/12148/bpt6k9765066g/f39.item (unless it is a drawing by Detaille himself)
BTW : the clock gives 1 PM for one and 3 PM for the other
Salutations
Dominique