VOLT REFLECTION METER MODEL 670 VOLT CORPORATION 10076 SERIAL NO 11845 MODEL NO 670 REFLECTIVE COLORIMETER FOR ASTM AND TAPPI METHODS

VOLT REFLECTION METER MODEL 670 VOLT CORPORATION 10076 SERIAL NO 11845 MODEL NO 670 REFLECTIVE COLORIMETER FOR ASTM AND TAPPI METHODS FOR DETERMINATION OF BRIGHTNESS COLOR OPACITY IN A VARIETY OF SAMPLES. WITH 2 LAMPS MODEL 0457011 S/N # 1001A W/YELLOW GREEN BLUE COLOR SLIDES