This is a 1952 Massachusetts SPRING INSPECTION Sticker. It has been restored and reproduced with our patented "Peel and Stick" format. This allows attaching to the lower inside passenger side of your windshield.
They were issued from April to October, 1952 and they were good for one year.
NOTE: In 1952 Massachusetts did not issue license plates. Instead it issued a registration sticker. If you want your car to be historically correct you need yo go to our 1952 Registration site.