Set of 2 botanical boards Geigy

Botanical plates from geigy weed tables. These are boards with weeds for a manufacturer of phytosanitary products. Copyright of the 1970s. Very fine and detailed drawing. Very good general condition. Edges very very slightly yellowed (very discreet, see photos). Small trace of a fold especially on the back, very very discreet on the front for the vetch. Off-white background color (photos taken with a white background). Boards in the same color tones (bristly vvet, gratteron). Dimensions: 29.3 X 20.5 cm. Shipping in suitable rigid cardboard envelope. Do not hesitate to contact me for any questions.