7.12.16

Auctions: online

Scroll down to Photography auction:

Christie's:
https://www.christies.com/onlineonly 

Sotheby's:
http://www.sothebys.com/en/auctions.html?cmp=ppc_L16412___google_belle_epoque_113016-121216&gclid=CL_ixqzi4dACFYiVfgodCoIBcg