Patent for a train-marker and engine signal-lamp meant to "provide a lamp in which the light may be differently colored and the change of color may be effected in an expeditious and convenient manner without the necessity of opening the lamp" (lines 10-14). It also provides "a guard or slide, whereby the opening through which the adjusting device passes may be closed, so as to prevent the wind from entering the body of the lamp and interfering with the flame" (lines 15-20). The lamp is meant for railroads and has two or more lenses, and is durably and inexpensively constructed. One color of light can be shown from the front and back and another from the sides.