New York: Grosset & Dunlap, 1927. First Edition. hardcover. Very good / Very good. Item #2011504
First edition, first state (with "Bpt" typo on page 137, last line) and only 30 Tom Swift titles listed on the inside of the dust jacket, not 31. Very good in a very good dust jacket (small 1/2 inch ship on top right corner of jacket), housed in a custom-made collector's slipcase.