Magnaflux Corp.: Chicago, IL, 1967. Hardcover. Very Good. Item #21-0762
Photos, 9.5 x 6", orange cloth, 525pp with index, extremities bumped and lightly worn, edges of textblock a bit soiled else a nice copy in a rubbed, edge-worn and edge-torn dustjacket. FIRST EDITION, INSCRIBED AND SIGNED BY THE AUTHOR, CARL E. BETZ, WITH THE AUTHOR'S BUSINESS CARD PAPERCLIPPED TO TITLE PAGE.