Sterling Siren Fire Alarm Co.

The Sterling Siren Fire Alarm Company, formerly the Inter-State Machine Products Company and originally the Uncas Specialty Company, was a major manufacturer of fire safety equipment based in Rochester, New York. Sterling Siren mainly focused on the manufacturing of electric sirens, as well as a number of friction sirens, hand-operated sirens and control accessories for use with their larger models. They primarily marketed their products to fire departments, though later advertised their sirens for use in mines, factories and for Civil Defense.

The company was incorporated in 1905 as the Uncas Specialty Company, originally based out of Norwich, CT. However, records potentially date back to as early as 1902. The company was formed by Frank W. Browning, B.F. Leavitt, and H.C. Williamson. The company would acquire two companies in 1911, the Rochester Machine Co. and the Sterling Lubricator Company, and would reform into the Sterling Machine Company, primarily producing small sirens and automobile parts. The company would be located in Norwich until sometime between 1912 and 1913, when the company was moved to New London, CT, and was renamed to the Inter-State Machine Company. It was around this time that the company's most popular siren, the Model M, would be invented by Merton C. Armstrong and released, quickly becoming a very popular fire siren. The company would remain in New London until roughly 1915, when the company would again change its name, this time to the Inter-State Machine Products Company, and would move its headquarters to Rochester, NY, where it would remain for the rest of the company's lifespan. The company would experiment with several designs, including a redesigned Denver Duplex and Quadruplex, as well as several different designs for the Model M, before deciding to stick with the standard Model M and its Code Siren variant, the Type F, as well as the Super Quad. The company would be renamed once again to the Sterling Siren Fire Alarm Company, Inc in 1925.

List of stationary siren models manufactured by Sterling Siren:

- Little Giant

- Model M

- Sterling Code-Blowing Siren

- Model 2V8

- Model 3V

- Models 3VX, 5VX and 7.5VX

- Sterling Quadruplex

- Sterling Duplex

- Super Quad

- Model F

- Model F2

List of vehicular siren models manufactured by Sterling Siren:

- Leavitt Siren Horn

- Type H

- Type E

- Type B

- Type S

- Type 12

- Model 10

- Model 20

- Model 30

- Big Chief

- Sterling Friction Sirens (Model 38R, 39R, 39F, etc.)