1750 Diderot Encyclopedia Sheet - Art Militaire Plate #Supl 3 lrg & 2 sm Nouvelle Artillerie (2) -Cannon managment

1 @ 9" x 13" and 1 @ 7" x 9.5" copper engraved study on hand laid papers in fine condition. Slight wear and soiling from age and use as seen, outside of image and not effecting content . Clean examples of 275 year old educational sheets from the first encyclopedia . These sheets covering : The directing and management of Cannon