Check out this, recently found in a photocopy from Horseless age from our archives, dated September the 18th 1901. Electric Water Gauge lights appear to be nothing new!:
" A new appliance for steam carriages has lately been placed upon the market by A.L Dyke, of St. Louis. It consists of an electric miniature lamp and the accompanying battery and push button for lighting up the water gauge at night. The water gauge on a steam carriage always needs close attention, and after dark a good light for lighting it up so as to reflect the water level from the mirror on the dash is absolutely necessary. The incandescent lamp of this outfit is provided with a socket ready for screwing onto the side of the carriage back of the lamp; the push button, which is a small "midget" push with pearl button, is placed in the arm of the seat directly in front of the throttle lever. The batteries, which are very small, are screwed under the seat. The battery, lamp, and push button are connected by a small wire. By pushing the button a full glare is thrown on the water gauge and reflected from the mirror. The light is not intended to remain lighted at all times, but merely as a flash light. The battery is said to last several months without any attention, and is quite inexpensive."
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