There was no such thing as a "VIN" in 1933. It is called a Car Serial Number.
The serial number plate is located on the passenger side main sill, under the floor mat, and the top line has the series...such as "Master" for example.
The second line (or bottom line) has the car serial number which consists of numbers and letters. The digits indicate the factory number in which the car was made, the series, the date of manufacture and the number of the run in that particular factory.
Check out the second photo from the left at the top of this page right under "Chevy Chatter II" and you will see an example of a later car serial number plate.
