One thing that strikes me about this catalogue is how many trucks and busses there are. I had always imagined trucks as more of a post-WWI thing, but it seems they were already well-established before the war began.
Farmers and businesses that delivered products, especially perishable foods, which most were during the days of the ice box, found motorized trucks very profitable in the long run.
My dad told me of the Model T truck his family used to take produce into town. Since gasoline cost money they ran this truck on moonshine whiskey. The updraft carburetor of the early model T could run off anything that burned and flowed trough a tube.
He had to drive the truck into a creek halfway to town and sit there till the motor cooled down before proceeding.