64с

2± "25;

-AIRSCREWS

THE HARBORÖUGH PUBLISHING COMPANY LTD ALLEN HOUSE, NEWARKE STREET LEICESTER

Sole Distributors to the Bookselling Trade :

HORACE MARSHALL & SON LTD TEMPLE HOUSE, TALLIS STREET, LONDON, E.C.4

Mad* and Printed in England bf HARRISON & SONS, LTD., PRINTERS TO HIS MAJESTY THE KING, 44/47, St. Martin's Lane, London, W.C2.

FOR MODELS

by

R. H. WARRING

1-Hfi 3K3.

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