VTG 40s NOS WW2 Microamp DC Gauge GRUEN WATCH USN

A precision instrument by the renowned Gruen Watch Co. Marked Made in USA by GRUEN Watch Co. Cincinnati, Ohio which dates this to 1940’s / World War II era Gruen joined the war effort under subcontract with Triplett & produced these meters for the US Signal Corps UNUSED vintage/antique cond Glass is excellent, no scratches or cracks! Fantastic Bakelite case, Original screws 2 brass terminal posts w washers - no sign of corrosion For your radio projects, industrial & steampunk decor, or military collection! ⚡️I ship every USPS working day. Your purchase will be on the way same or next day⚡️