1940, Plymouth, "Hotter Than a Firecracker" Pinback

From an estate-collection, what you see is what you get. Has been in storage since the mid 1970's.

This celluloid pinback button measures 2 and 5/8ths inches in diameter and is blue, black, red, and white. It says; " Hotter than a Firecracker! 1940 Plymouth". T is a Cruver Mfg. Co. Chicago label on the rim at six o'clock. No paper on the back or label.