During WWII, in "Shop", all high school seniors used to make wooden models, painted black, for use as recognition aircraft. They would get very good at making them and would turn out a couple dozen a week of all types. They would set up a production line from cutting out the wood in the band saw, some doing sanding and glueing to finally painting them black.
I wonder what ever happened to the many thousands that were produced. There has to be a collection somewhere.