TOM SWIFT AND HIS AIR GLIDER or Seeking the Platinum Treasure. #12.
Edition: Early printing.
New York: Grosset & Dunlap, (c 1912.). Hardcover - No frontispiece. 209 pp plus 10 pp publisher's ads. Lists to #13 at front and to #15 in the ad at the back.
Condition: Fair condition only in tan boards with red and brown illustrations and lettering. Both hinges cracked, one leaf is loose but still present, some wear to the covers including fraying at the ends of the spine.