Yên Linh Mining Company in Tuyên Quang, a joint-stock company with a capital of 700,000 francs, was established in 1912.
(L’Avenir du Tonkin, November 6, 1912)

The zinc it extracts is estimated at 74 tons from 186 tons of calamine (40%)

Back of the cards
Green back

It is Louis Baud, a hotelier, who publishes these postcards. His hotel in Tuyên Quang provides accommodation and rest for the military of the Tuyên Quang district, as well as for the personnel of the region’s mines.