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wrhs:16368
G. A. Sands-Morgan Safety System
still image
Advertisements
Yellow advertising sheet for the Morgan Safety System, a traffic signal system. "A better protection for the pedestrian, school children and R.R. crossing".
ca. 1923
unknown
United States
Cleveland (Ohio)
Sheet
5.5 x 12.5 in
Traffic signs and signals African American inventors -- Ohio -- Cleveland