Egley's work may be inspired by paintings of cramped railway carriages by French painter Honoré Daumier.
Passengers could sit on benches to either side inside, entering via a door at the rear, or climb up to exposed seats on the roof.
A driver would ride at the front of the carriage, with a conductor assisting passengers to climb aboard or depart and taking fares at the rear.
A view of Westbourne Grove can be seen through the rear windows, near Egley's home at a chemist's shop on the corner of Hereford Road.
An elderly country woman with piles of luggage looks in concern at the plight of a well-dressed young mother (based on Egley's wife) with two children, who demurely averts her gaze; further back a city clerk sits with his cane.