The market set is from the Eastman Kodak archive. The photographer's name was Chusseau-Flaviens. A Frenchman, obviously.
I remember that there were quite a few London shots (& capitals all over Europe). These marked as "Petticoat Lane" were the only East End ones, though.
Remaider of the set:
The location of the next two I'd like to find out. "Petticoat Lane", as we know, could mean any of the adjoining streets - even beyond..
I seem to remember this was touched upon in the latest late boards...but can't remember whether any conclusion was reached. Does "Dakin Bros" or the chimeny stacks at the rear ring any bells?