This vintage porcelain gas station door sign measures 9 inches by 4 inches and features the phrase “SLOW SCHOOL ZONE” in colorful lettering. It was created in the 1950s in the United States and is an original piece, not a reproduction. The sign is branded by SCHOOL ZONE and was likely used to alert drivers to a nearby school and the need to slow down. It is a unique piece of advertising memorabilia from the mid-20th century and would make a great addition to any collection.