The Model TT was a truck made by Ford. It was based on the Ford Model T, but with a heavier frame and rear axle, giving it a rating of 1 short ton (0.91 t).
When first produced in 1917, the Model TT was sold as a chassis with the buyer supplying a body. The price was $600. Starting in 1924, the truck was available with a factory-produced body. By 1926 the price had dropped to $325.(WikiP)
This model is based on Pencil42's Dodge Brothers 1918 truck.
My thanks go to pencil42 for his generous license