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War Department Technical Manual Shop Mathematics TM 9-2820 May 1945 Vintage Book
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War Department Technical Manual Shop Mathematics TM 9-2820 May 1945 Vintage Book Vintage 1945 War Department Technical Manual TM 9-2820 provides a comprehensive look at shop mathematics used during the WWII era. This softcover manual features detailed diagrams and instructional text covering plane and solid figures, trigonometry, and machining calculations. It serves as a significant historical artifact for collectors of military memorabilia or those interested in mid-century industrial education. Shows visible wear consistent with age, including edge wear, small tears on the spine and cover edges, and a previous owner's name written in ink on the front and back covers. The internal pages remain clean and legible with some light yellowing. Author: War Department Publication Year: 1945 Language: English Format: Softcover Topic: Shop Mathematics Series: Technical Manual Subject: Military & War Era: 1940s WWII, World War II, 1945, Military Manual, Technical Manual, Shop Math, Engineering, Machining, Vintage Book, Ephemera, War Department, Army, History, Educational, Trigonometry, Geometry, Industrial, Mid Century, Americana, Collectible, Reference, Paper, Antique, Document, USA, Army Air Force, Navy, Marine Corps, Training, Veteran
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.