A Mystery of the Air

by John F. C. Westerman, A. Mason Trotter, author

$75 · Offered by Rare Aviation Books

London: Humphrey Milford: Oxford University, 1931. Octavo, illustrated blue cloth, vii, 253 pp., frontispiece, four plates. Spine ends a little rubbed, some foxing throughout, otherwise a good copy. This story begins with an anonymous letter demanding a ransom of sorts. Peter must identify the mystery behind this letter, and more..... More

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