Jay, this Magnalite Tea Kettle was made in two sizes;
4133 is 2 1/2 Qt.
4135 is 5 Qt.
I reference a 1936 Wagner Catalog showing this item.
The handles and knobs are finished in old maple.
In 1936, the line of Magnalite utensils were designed by Van Doren and Rideout.
(don't know who that was, but that is how the catalog advertises this line of cookware) :) :)
The Redbook shows only the 4133. The Red and Blue Books show only a small portion of the many, many Aluminum items produced by both Wagner and Griswold.
:)