An authentic, mid-20th-century vintage military panel gauge manufactured by the British engineering firm Metropolitan-Vickers Electrical Co. Ltd. This heavy-duty analog meter features a solid-cast metal housing with a black finish and a curved white dial face measuring from 0 to 20 volts. The display prominently bears the official British Commonwealth military broadarrow (Pheon) acceptance mark directly above the interlocking "MV" company trademark.

Originally built for WWII-era military infrastructure—such as mobile generator sets, field radar units, or communications command panels—this gauge was designed to monitor 12V electrical systems under load. The reverse side features heavy terminal connections, structural mounting bolts, and a stamped "MV" factory inspection mark on the lower rear housing. Combining clean technical typography with genuine military provenance, this piece is an excellent addition to any collection of historical instruments or high-end industrial design projects.