1913 Pendulum Propeller Rudder Schooner Ships Navigation Scientific American Illustrated

We are pleased to offer this 110+ year old ORIGINAL Journal Article, The Pendulum Propeller Rudder, written H.C. Vogt, published in Scientific American.  

Article is 3 pages with 7 Illustrations/engravings. Pages are 11" x 16" (SA00129)      2/23

Condition:  Good Condition with some light foxing and soiling to the pages due to age.  See photos.