Notes: May, 1948 issue of Popular Mechanics Magazine featuring color cover art of helmet diver holding underwater camera and 8-page photo-illustrated article on diving mechanics. 328 pp. 9 3/8" x 6 3/8". Tight, unmarked copy with minimal shelf wear and faint musty odor. Photographs of or additional information about this item are available on request. All inquiries answered promptly.

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