Roofs

[Chuck Dempsey]

That article explains it all. It reads, in part -

In 1932 the Inland Steel Company opened America’s first continuous sheet mill capable of making wide sheet steel. Concurrently Inland and other steel producers introduced steel formulations that allowed deep-draw car body stampings. These two advancements enabled car makers to make full steel roofs with enough crown to avoid drumming, and in keeping with the styling of that decade.
All-steel sedan and coupe roofs first appeared on 1933 Oldsmobiles as the Fisher Body “Turret Top” and on Willys Overland “Silver Streak” and “Streamline” models. In the course of the next three years, all of the major car makers followed suit, this Cadillac being typical after the transition ended.

Thanks Sparky

[old Tom]

thank you that is just like the one Dad had it was rated as a 1/4 ton truck.

[31a]

I think the reason Henry used vinyl wire and batting was it cost less to do than the steel top