When I first saw these 3" x 2" drawings, I was really impressed. For such small drawings, the detail was amazing. [Be sure to click on the images to see the enlargements.]
The seller didn't have much additional information on these when I bought them. In doing some research, they style appears to be very similar to Tenggren's, but I don't have any real proof. At any rate, I thought you might enjoy these little gems.
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From “Pinocchio” (1940). A small series of 3 concept images for the meeting of Pinocchio, Honest John and Gideon. Very precise and well drawn. Where John & Gideon hide behind a tree and John bends over (takes off hat and cards fly out). Based on other sketches, this sequence may have been drawn by Gustaf Tenggren (1896-1970). [Image: Left: 3"W x 2-3/16"H, Center: 2-7/8"W x 2-1/8"H, Right: 3-1/16"W x 2-3/16"H. Frame: 17"W x x8-3/16"H.] Acquired 1990. SeqID-0116 Updated: 8/3/2005