With due respect to all, a Model A dovetail does not necessarily fit a Model A. There were at least 6 different male dovetails on different Model A body styles.
Several do directly interchange to 1932 and later.
B-76819-A or B, Common 2 hole Model A Coupe and Tudor, 1932-34 Roadster Pickup. (1938 Hardware & Trim, 1932 Ford Book p. A-11-7). This is the one that could be mistook for the 1932 open car or 1933-36 open car dovetails.
BB-336850-A, Model A Slant Windshield, 1932 School Bus BB-330 rear door.
(The 1938 Hardware and trim shows no longer supplied... supply B-46421). This is the wedge style that is obviously close to the 1932 closed car.
B-151428 1928-31 Station Wagon, 1932-34 Station Wagon.
I hope that separates the fly crap from the pepper.
Note that the wedge shaped dovetails 1932-36 closed and 1937-later have two offset versions, one "up" and one "down".