393 records — Page 1 of 40
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Level:
file
Collection ID:
Record Unit 552
Repository:
Smithsonian Institution Archives
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Creators:
Adler, Charles, Jr., 1899-1980 (engineer, inventor)
Dates:
1899 - 1980
Size:
6 Cubic feet (; 15 boxes)
Collection ID:
NMAH.AC.0351
Repository:
Archives Center, National Museum of American History

The collection contains correspondence, news clippings, photographs, patents, and printed materials documenting the inventive career of Charles Adler, Jr. Adler is best known for his development of the first traffic actuated signal light in 1928.

Found In
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Level:
file
Collection ID:
Accession 98-140
Repository:
Smithsonian Institution Archives
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Level:
file
Collection ID:
Accession 01-086
Repository:
Smithsonian Institution Archives
393 records — Page 1 of 40