Series "C" Tests. Field, Foundry and Laboratory Check Tests.
9 ft. 7 in. Centers and Sides.

Candle-power and Foot-candle Curves — Oil, Incandescent and

Series "C" Tests. Field, Foundry and Laboratory Check Tests.

9 ft. 7 in. Centers and Sides.

Candle-power and Foot-candle Curves - Oil, Incandescent and

Series "C" Tests. Field, Foundry and Laboratory Check Tests.

9 ft. 7 in. Centers and Sides.

Candle-power and Foot-candle Curves - - Oil, Incandescent and

Series "C" Tests. Field, Foundry and Laboratory Check Tests.

9 ft. 7 in. Centers and Sides.

Candle-power and Foot-candle Curves — Oil, Incandescent and

Series "C" Tests. Field, Foundry and Laboratory Check Tests.

9 ft. 7 in. Centers and Sides.

Candle-power and Foot-candle Curves - Oil, Incandescent and