All of these wooden replicas are built from Toys and Joys plans or Gatto plans.
The grader is about 28” all parts work made out of maple, cherry and assorted exotic woods gatto plan.
The Mack truck is 18” detailed engine and running gear made from oak, maple and cherry and some details out of exotics gatto plan.
Bull dozar is 20” tracks move and are out of walnut all parts move body is out of oak and cherry Toys and Joys plan.