Photography By Infrared: Its Principles and Applications Walter Clark
1939. No Edition Stated. 397 pages. No dust jacket. Grey cloth with red lettering. B&W illustrations throughout. Minimal foxing and tanning to endpapers and page edges. Both hinges presumed repaired with cloth. Stamp to front paste down. Moderate wear and bumping to spine, board edges and corners, with splitting to spine ends and along joints. Notable tanning to spine and board edges, with scuffing and marking to boards.