Grosset Dunlap. Copyright: 1939 Print Run: 1951, Farah Code 1951A-29, original 25-chapter text and Russell Tandy artwork. White spine dust jacket, chipped in places, especially the lower and top of the spine. It has 100-150 designation at the bottom of the front dust jacket flap, but is slightly price-clipped at the top of the flap. It lists to The Clue of the Black Keys. The rear flap lists to Cherry Ames Mountaineer Nurse, and the rear of the dust jacket lists to Dana Girls The Clue in the Cobweb. Dust jacket is crisper than it looks in the picture, because there is a mylar protective covering over it. Light blue tweed book with some cover wear but the hinges and spine are sturdy. There are no page or hinge tracks. Navy blue silhouette endpapers. No writing/markings beyond the prior owner's name in three places: front dust jacket flap, free front endpaper, and reverse of internal pre-text booklist. Blue-ink top page block. Small tan stain on side page block and also on bottom page block. NOTE: When we ship to an address within NY state, you’re out of luck. An 8.75% sales tax must be added to your purchase. (16B)