Material: glass. Size: 5 1/2" L. Description: Edison Mazda 25-watt 114-volt "Tantalum" bulb which preceded current tungsten filament bulbs.
In possession of donor since ca. 1920s.
Transferred to the Bakken Museum in Minneapolis on 11 July 2006 and received back in WCHS collection on May 9, 2007.
