**1940 edition.** Hardcover w/ ring binding inside. Good vintage copy--paper still shiny, no marks or tears, no loose pages. All thumb tabs intact but they're slightly bent. Original decorated exterior is intact; shows mild age & handling wear but still in good condition. Spine cloth rubbed. Includes original "Surfaces & Contrasts" chart; also an "About Lenses" kodak booklet has been stapled onto the last blank page. [4565a]