WWII Aircraft | Weston “Type A” Dual Purpose Voltmeter & Ammeter (0-30 Units), possibly never used / NOS. Similar units were designated for USAAF / Navy applications during WWII. Marked Bu. Aero. (Bureau of Aeronautics) indicating it was commissioned specifically for the US Navy or maritime aircraft operations. Housed in anti-reflective bakelite case and designed to fit standard cockpit cutouts. Manufactured by Weston Electrical Instrument Corp. Possibly never used / NOS. Lovely, as found condition. Offers gladly considered.