Rare Kewanee Boiler Company Steam Gauge

Marked in very early type font:
Kewanee Boiler Company Inc. New York City.

This as found, early model steam gauge features a spinning
hand with a spring inside that moves it back and forth.
Brass face ring with cast iron back area.
No glass front.

Dimensions: 10 inches in Diameter by 2 1/8 inches in Depth.

Construction: Cast Iron and Brass.
Weight: 6.1 pounds.
Age: Antique / Vintage.