The Stromberg EX was a single barrel downdraft carburetor used from 1932-1937 in various makes including Auburn, Chrysler, DeSoto, Dodge, Graham-Paige, Nash, Oldsmobile, REO, Studebaker and White. It was produced in SAE size 2, 1-7/16" throttle bore (eg. model EX-2) and SAE size 3, 1-11/16" throttle bore (eg. model EX-32).
How to find Stromberg carburetor numbers
Explanation of Stromberg carburetor number manufacturer codes
Stromberg carburetors listed by carburetor number