The works of the Eiffel Tower180 meters in the air. Bolting the joint of the two rafters., Henri Lanos, between 1889 and 1890

Construction workers standing on an elevated platform on the eiffel tower. The building in the background (with the two minaret-like towers) is the trocadéro, which had been constructed for the previous world fair in 1878, and which was destroyed by a fire in 1935. Date: between 1889 and 1890. Dimensions: 25.5 x 20 cm. Medium: wood engraving print. Collection: Brown University Library. Les travaux de la Tour Eiffel. À 180 mètres en l'air. Boulonnage du joint des deux arbalétriers