"Paris, 30-7-1843, h. Daumier - I, the undersigned, Honoré Daumier declare to reduce the price of my drawings in lithography, to forty francs the drawing with the condition 1st, that the first 11 stones which I will deliver to 'Charivari' will be paid to me at the old price, that is, fifty francs each. 2° that this reduction will be made to me as long as M Dutacy remains attached to the.. .'Charivari'; this having been made for the sole purpose of being agreeable to him."
January 1, 1970
https://en.wikiquote.org/wiki/Honor%C3%A9_Daumier