This antique breast badge pin from 1922 is a collectible piece of transportation history. Stamped on the back with "STP. CO," it represents the Interurban Passenger Stage 79 line in Los Angeles, California. Measuring 1.25" in height and 1.5" in width, this piece was likely worn by passengers or employees of the service. Made in the United States, it offers a unique glimpse into the past of urban transportation in the early 20th century.