* Steel: This was the dominant material for the chassis, body panels, and many other structural components. It provided strength and durability.
* Wood: While steel was becoming more prevalent, wood was still used extensively, particularly in the body framework (as a supporting structure underneath the steel panels) and in some interior trim.
* Rubber: Used for tires, hoses, and various seals and gaskets.
* Glass: Windshields, windows, and headlights.
* Leather/Fabric: Used for upholstery, seat coverings, and interior trim.
* Brass/Nickel: Used for various decorative elements and smaller parts.
* Cast Iron: For engine blocks and other heavy-duty components. (Though aluminum was beginning to be explored, it wasn't yet widespread.)
It's important to note that the proportion of these materials varied depending on the make, model, and price point of the car. Higher-end cars might use more leather and brass, while lower-cost models would emphasize more economical materials. The trend throughout the 1920s was a gradual shift towards more steel and a reduction in reliance on wood in the body construction.
