This is nice. It looks like it is part of an original copy of the ENCYCLOPEDIE METHODIQUE DE LA MARINE; a reprint is published by Ancre.
But to anyone really interested, it needs to be complemented by the text portion of this work to really be useful in furtherring one's knowledge.
But then again, no english version, so for most it is like looking at a scketch book without explanations.
By the way Allan, this is the kind of stuff, among many other sources, that is used to put monographs together and knowing that should convince most of the uninitiated of their historical validity for model ship building purpose; even if interpretation of some details is needed from authors typically well versed on the subject.
Anyways, nice find...
G.