Duplex: Corwico Porcelain
4 1/8" X 1 1/4" (105mm X 33mm)
(top embossed) CORWICO - - - DOUBLET ANT / GND / ANT LIGHTNING ARRESTER
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4 1/8" X 1 1/8" (105mm X 30mm)
Picture courtesy Jim Fielding |
These duplex versions were used to connect two antenna wires to ground. This is cobalt blue glazed dry process porcelain.