Charming stylized drawing of a vibraphone with mallets and musical notes by the great American jazz musician, who has boldly signed and inscribed "Good Luck / Keep Swingin / Lionel Hampton / 10.21.91." in black felt tip on paper.  Deckled edges with a crease to the lower left corner, else in fine condition.  7.25 x 10.25 inches (18.4 x 26 cm.); framed to 16.25 x 19 inches (41.3 x 48.3 cm.).