Hardcover. Condition: Very Good. Dust Jacket Condition: No Dust Jacket. Hardcover; no dustjacket, as issued. This is a printed Masters thesis published at the Case Institute of Technology in 1950. Bound in black buckram. The gilt lettering is somewhat faded. Else the binding is clean. Endpapers somewhat age-toned. Else pages clean. Illustrated with a few charts & graphs; plus 5 full-page B&W original photographs of the device bound-in. ; 27D; 11" x 8-1/2"; 44 pages.