Roger Therond

Gustave le Gray (1820-1884) Marine, bateau quittant le port, 1856-1857 (estimate: €500,000-€700,000)
Iconic French Photography from Roger Therond's Collection to Auction
Christie’s will present more than 350 photographs from the 
Ascension du Mont Blanc by Auguste-Rosalie Bisson, 1862, albumen print
Roger Therond's Photography Collection to Auction
Christie’s will offer Collection Roger Therond, Une passion française in Paris later this year.