Rare Vintage World War 2 thru Vietnam War era US Army Signal Corps Test Set I-139-A with scarce Weston Model 517 Volt Meter Gauge embossed for the BELL & HOWELL Camera Company in original Army green metal box and in outstanding as found condition - acquired through the estate collection of a lifelong U.S. Army Veteran Paratrooper and avid collector - a very rare gauge for the Weston collector and an exceedingly rare find for the Signal Corps collector too, so take advantage