C. 1940s-50s Hand-painted Auto Bulbs Sign on Cardboard

This and a second one just listed I purchased from a dealer in the Hudson River Valley who always has wonderful things of great variety; I'd guess these originated at a service station not far from there, c. 1940s. Hand-painted on cardboard with that best blue paint on white ground, making one nostalgic for the nearly lost art of sign painting--and also for the prices of yesteryear! 13 3/4" x 13 3/4". Overall pretty good condition; general wear with a little rippling to the cardboard along the bottom edge.