I'm spreading out my accessories from the Scenic Railway and posting them one at a time so I can stay in the game here lol...
A Lionel #57 Main and Broadway street lamp with die cast base, rolled sheet metal post and celluloid bulb enclosure, ca. 1922-42. The 4 trapezoidal shaped vents on the bottom side allow some of the light to cast downward on the base and is a pretty neat feature on a darkened layout.