Red Car Trolley #623 - Buena Vista Street: Red Car Trolley #623 carries a double reference. The 23 refers to 1923, an important year for Walt Disney. His Laugh-O-Gram Studios in Kansas City, Missourri had gone bankrupt in July, so in August of 1923 Disney moved west, deciding to try his luck making films in Hollywood, California.
The 600 in 623 comes from ithe trolley car's historic model number. Red Car #623 is patterned after the St. Louis Car Company's 600-series of trolleys that were used in Hollywood by the Pacific Electric Railway in the early 1920's.