Note: See my other listing for similar slide rule devices. Combined shipping available on items purchased together.
Vintage CSG-1A Slide Rule Graphic Aviation Flight Calculator made by Jeppesen & Company. Includes JEPCO Briefing Booklet BG-1 — a 2-color manual with fun illustrations of Cap'n Sharp.
CONDITION: Calculator has some surface dirt, scratches, and other wear. Wheel and slide move smoothly. Case shows dirt, discoloration, label remnants and has a mildew odor inside. Book has wear, ink marks, and some creasing/wear near the binder holes. Inside has previous owner's name (pixelated in photo).