This page shows the four inch series of cars and trucks that were used for Marx 6"flatcar loads. Included on the page is a general overview of the entire series detailing what colors were available, which came in train sets, which were separate sale items only, and showing some that are often confused for Marx but are not. It explains and details the different variations for both the airflows and trucks, including logo design, logo placement, grilles, wheels, axles, and body stampings.
The words in yellow are links to pages showing different toys that some of the vehicles were sold with. This page is of considerable value for both 6" tin train and pressed steel car/truck collectors. It is likely that the most experienced collectors will find something on this page that was previously unknown to them.

This page is shown in 1/6 actual size.