This is a model of a small (3 cubic yard capacity) Redi-mix truck from the 1950's. The chassis is a model of a 1955 Ford Big Job F-700 truck. I added an approximately 7/8" long piece of 1/4" diameter white plastic rod at the back/top of the cab to represent the water tank that these truck had and the model is missing. My dad and I used to get concrete in trucks like these in the 1950's or 1960's when we either didn't need a full 7 cubic yard truck-full or if there were accessibility issues with the job site (lots of trees or muddy ground). For example, pouring the floor of a 1 car garage or the front sidewalk of a new house.