I took a quick look at some of the books I have. Most only show the cars from the side and any 3/4 views are not clear enough to really see much. The drum headlights were popular from about 1922 to 1926 and many makes used them. These could be aftermarket too, to update your car in that era. After the gas light era most cars had bullet shaped lights and after about 1926 most makers went back to that style.