Air Ministry PILOT'S NOTES THE BOSTON IIIA AEROPLANE TWO CYCLONE GR-2600-23 ENGINES Serial Number Ac42-32951 to Ac42-33383 Incl. Air Publication 2023c Pilot's Notes 0 Reproduced By Permission of the US Government Very Good+Paperback in Very Good+ condition. 8vo 8" - 9" tall. * Quick Shipping * All Books Mailed in Boxes * Free Tracking Provided *