GE Electric Lamp Heater

This model A-23 electric heater was introduced in 1913 by General Electric.  It was never used, and found in its original carton though, unfortunately, it suffered some water damage sometime while it was in storage.  What is left of the top of the carton is shown below.

The source of the heat is two large carbon-filament bulbs, about 11 inches long and 3 inches in diameter.  Each bulb draws 250 watts.  Behind the bulbs is a copper-plated steel reflector to direct the heat towards the front.  The picture above shows the lamps lit at about one half their normal voltage.