The original lamp burned kerosene; in 1909 it was replaced with an incandescent oil vapor lamp.
In 1909 it was replaced with an incandescent oil vapor lamp. The original lamp burned kerosene.
The original lamp burned kerosene. In 1909 it was replaced with an incandescent oil vapor lamp.
The original lamp burned kerosene. In 1909 it was replaced with an incandescent oil vapor lamp.