The drawing below is from Gustave Eiffel's book describing the tower that bears his name. There are 53 of them in total.
XLVII. Restaurants and central pavilion of the second platform
The last technical sheet describing the Eiffel Tower concerns the modifications made to the buildings on the first floor, the two restaurants (French and Russian). The shape of the facades, a little different from those in place in 1889, can be clearly seen here.