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- Moore Motor Semaphore Motometer, circa 1925 - Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Chicago's Semaphoric Indicator Company produced this motometer intended for vehicles made by Buick, a division of the General Motors Corporation.

- circa 1925
- Collections - Artifact
Moore Motor Semaphore Motometer, circa 1925
Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Chicago's Semaphoric Indicator Company produced this motometer intended for vehicles made by Buick, a division of the General Motors Corporation.
- Semaphore Motometer, circa 1925 - Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Semaphoric Indicator Company produced this motometer in Chicago around 1925.

- circa 1925
- Collections - Artifact
Semaphore Motometer, circa 1925
Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Semaphoric Indicator Company produced this motometer in Chicago around 1925.
- Moore Motor Semaphore Motometer, 1920-1930 - Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Chicago's Semaphoric Indicator Company produced this motometer in the 1920s.

- 1920-1930
- Collections - Artifact
Moore Motor Semaphore Motometer, 1920-1930
Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Chicago's Semaphoric Indicator Company produced this motometer in the 1920s.
- Semaphore Motometer, circa 1925 - Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Semaphoric Indicator Company produced this motometer in Chicago around 1925.

- circa 1925
- Collections - Artifact
Semaphore Motometer, circa 1925
Automobiles often came without temperature gauges before the early 1930s, so enterprising manufacturers sold aftermarket motometers. Mounted on a car's radiator, these devices measured and displayed coolant water vapor temperature, notifying drivers if their automobiles were in danger of overheating. Semaphoric Indicator Company produced this motometer in Chicago around 1925.