Lot of 6, each 2.25x2.5" and variety noting "Series Of 48 Cards" on backs. National Chicle Co., 1933-1934. These are 6 key cards from the set and include #1 David Putnam, #20 Edward Rickenbacker, #23 Baron Manfred Von Richthofen, #32 James H. Doolittle, #48 Amelia Earhart, #36 Col. Charles A. Lindbergh. All cards are free of creases. #20, 23 have moderate aging to top margins w/some scattered age spotting and ft. trace of moisture, really only noticeable on reverses. VG. The other 4 have typical lt. margin aging but overall remain clean and w/fairly sharp corners. Exc.