The drawing below is from Gustave Eiffel's book describing the tower that bears his name. There are 53 of them in total.
VII. Metal frame crimping
Plate 7 is relatively important, it is the one that describes the 29 vertical sections of the Eiffel Tower. They are listed, that is to say that we can read the dimensions of each section. There is also a precise description of the basement arch and lower struts. This plan ends with the drawing of the summit section, that of the campanile. It is clear that it has been completely modified since the time of construction, it has no longer the same shape.
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