The single medallion scheme was applied to new cars built in 2-47<
What is the build data of this car, earlier than '47?
The first cars were built in 1933, and they were built in growing numbers through the 1930s and early 1940s. By the end of 1941, almost 400 cars were in service, the major owner/lessors being Cabot, Columbian Carbon, United Carbon, and Continental Carbon. I understand that decal sets for other owners than Cabot will be along later.