The number you refer to 154-3120 is the Hayes body tag number on the firewall, drivers side. 154 is a 1931 675 custom sedan. I will be sending you a form to complete, if you would, to enter this cars info in the New Registry being looked after by Steve Large in Mississauga.
Don't know why the car has a vacuum tank on the firewall when it has a fuel pump on the block back of the carb.
Where Are You From? Ottawa Ont
Do You own a car built by Durant? Dominion built 1932 614 Sedan