ブリル
The city's first trolley bus line was route 80-Oregon Avenue, an east-west route in South Philadelphia which ran from 22nd Street to Delaware Avenue, a distance of . Service began on October 14, 1923, with a fleet of 10 vehicles: nine built by the J. G. Brill Company (a major U.S. streetcar manufacturer) and called the "Rail-less Car" model, and one experimental unit built by the Commercial Truck Company (the only trolley bus ever built by that company). A tenth Brill unit was acquired the following year. All were replaced by more modern Brill T30 trolley buses in 1935.