1873, 40c. orange and 30c. brown on entire letter from Bordeaux 5.8.73 addressed to M.Engzelius & Son in Röraas /Norway (Røros), Paris transit mark 6.8.73 on reverse. Røros is a small town with mining industry, located in a remote mountain area near the border to Sweden. A census in 1769 counted 2000 inhabitants, today's population is about 5500 people. Very rare and unusual destination. (Katalog-Nr.: 35, 54)