2 fitting on back,black face w/fluorescent numbers

---

Size: 3643px × 3643px
Photo credit: © Heritage Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -magnetic, 20th, adi, air, alloy, armed, army, art, black, century, color, colour, concept, copper, country, dial, education, educational, engine, ferrous, forces, fuel, gauge, glass, heritage, indicator, institution, instruments-engine, japan, japanese, location, machine, manufacturing, measurement, metal, military, museum, nasm, national, object, paint, part, plant, plastic, pressure, scientific, seisakusho, shinagawa, smithsonian, space, war, warfare, white