Victor Bulla
1917, 4 July
Use of the "The shooting by the Provisional Government of a peaceful demonstration at the corner of Nevsky Prospekt and Sadovaya Street." photograph in the popular press.

Magazine pages
Internet - Original source ill-defined
L'illustration, 22 October 1917.
?????, 22 October 1917.
 
(Alan Griffiths, 7 September 2021) I'm indebted to Andrej Shulgin, for bringing these to my attention.
 
LL/113547