3" X 4" (75mm X 100mm)

(top ink stamp)

{side view of insulator}

(Porcelain Manufacturing Plant Electrotechnical A-16)

Picture courtesy Michał Okulicz-Kozaryn

3" X 4" (75mm X 110mm)

(top ink stamp)

{front view of insulator}

(Porcelain Manufacturing Plant Electrotechnical A-16)

Picture courtesy Michał Okulicz-Kozaryn

3" X 4" (75mm X 110mm)

 {Insulator shown with the fuse attached}

Picture courtesy Michał Okulicz-Kozaryn