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- Radiation Portal Monitor, circa 1963 -
- circa 1963
- Collections - Artifact
Radiation Portal Monitor, circa 1963
- Monitor 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. An unknown company produced this "Monitor" motometer in Germany around 1925.
- circa 1925
- Collections - Artifact
Monitor 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. An unknown company produced this "Monitor" motometer in Germany around 1925.
- Midget Monitor Radio, 1950-1955 -
- 1950-1950
- Collections - Artifact
Midget Monitor Radio, 1950-1955
- Zenith Internal Monitor Screen, 1983 -
- 1983
- Collections - Artifact
Zenith Internal Monitor Screen, 1983
- Kodak Monitor Camera, 1939-1948 -
- 1939-1948
- Collections - Artifact
Kodak Monitor Camera, 1939-1948
- Matsushita Internal Monitor Screen, circa 1982 -
- circa 1982
- Collections - Artifact
Matsushita Internal Monitor Screen, circa 1982
- Playskool Portable Baby Monitor, circa 1990 -
- circa 1990
- Collections - Artifact
Playskool Portable Baby Monitor, circa 1990
- General Electric "Monitor-Top" Refrigerator, circa 1934 - The big news in the kitchen during the 1920s? Reliable, affordable electric refrigeration. As more homes had access to electric power, people replaced their messy wooden iceboxes with stylish, low maintenance, enameled porcelain electric refrigerators. In 1930, 10% of households had them -- by 1940, 56% did. General Electric's distinctive "Monitor Top" refrigerator was a big seller in the late 1920s and early 1930s.
- circa 1934
- Collections - Artifact
General Electric "Monitor-Top" Refrigerator, circa 1934
The big news in the kitchen during the 1920s? Reliable, affordable electric refrigeration. As more homes had access to electric power, people replaced their messy wooden iceboxes with stylish, low maintenance, enameled porcelain electric refrigerators. In 1930, 10% of households had them -- by 1940, 56% did. General Electric's distinctive "Monitor Top" refrigerator was a big seller in the late 1920s and early 1930s.
- Shepherd's Monitor Slate Desk, circa 1877 -
- circa 1877
- Collections - Artifact
Shepherd's Monitor Slate Desk, circa 1877
- Portal and Tunnel on Pennsylvania Turnpike "America's Super Highway," 1940-1950 - When it opened in 1940, the Pennsylvania Turnpike ran 160 miles between Harrisburg and Pittsburgh. It was extended another 100 miles east to Philadelphia in 1950. The turnpike included seven tunnels through the Allegheny Mountains. Six of those tunnels originally were started in the 1880s for the never-finished South Pennsylvania Railroad.
- 1940-1950
- Collections - Artifact
Portal and Tunnel on Pennsylvania Turnpike "America's Super Highway," 1940-1950
When it opened in 1940, the Pennsylvania Turnpike ran 160 miles between Harrisburg and Pittsburgh. It was extended another 100 miles east to Philadelphia in 1950. The turnpike included seven tunnels through the Allegheny Mountains. Six of those tunnels originally were started in the 1880s for the never-finished South Pennsylvania Railroad.