I have chosen streetcar numbers and since public transit is how some elevator cleaners get to work, in the days of when gated elevators were new, and when World War II was going on, people rode both buses and streetcars. St. Louis Public Service bought the 1500 class PCC streetcars in 1940 which was also the debut year for them. In 1941, they bought the 1600 class PCC cars. The 1700 class were bought in 1946. This channel has quite a variety. Elevators, escalators, organs, V-Logs, bus rides, and trucks. When I was young, there were a lot more gated elevators and many more black button elevators. Otis Lexan elevators and Otis touch sensitive button elevators were more popular back then.