Victor Appleton; Nat Falk, illus. TOM SWIFT AND HIS PLANET STONE, Or Discovering the Secret of Another World. New York: Grosset & Dunlap, 1935. First edition. Hardcover. Orange cloth-covered boards with black lettering, in illustrated dust jacket, top edge orange, with orange pictorial endpapers. Small 8vo; 203pp. plus one page ad for the series. Book #38 in the series, and last in the series published by Grosset & Dunlap; book list on front flap ends with Planet Stone.

Boards with soiling and staining, slight cleaning fluid smell, corners and head/tail lightly rubbed; interior with small tear at front hinge, stamps and some soiling to endpapers, toned and with foxing. Jacket toned, especially at spine, with small losses and tears, and slight creases and folds, with stains/soiling to jacket interior; image on cover still bright, not price clipped (50 cents) and in removable protective mylar cover.