Jewish-American painter and cartoonist (1897–1977) known for his radical political views and contributions to left wing publications. ALS signed “Gropper,” one page both sides, 4 x 9.25, personal letterhead, June 16, 1962. Letter to an art collector. In part: “Regarding the painting of ‘My Grandfather’—you were given the wrong price—it is $3500.—However as you say, it is not in your price range…The only sketch that I have—is the original for the invitation of my show, drawn on grey cardboard with my lettering and hand writing—it measures 6” x 9” I am enclosing the reproduction. You may have the original for $150. on condition that the drawing is not cut apart from the writing—you frame it as one complete picture…It is so pleasing to hear that ‘My Grandfather’ is so closely related in resemblance to all other grandfathers. If he were alive today, he would blush with shame.” A central horizontal fold, light scattered creases and soiling, and some light toning, otherwise fine condition. Accompanied by the reproduced invitation card Gropper references in the letter. RR Auction COA.