made a Opel P1 from 1960 for a friends birthday.
Pattern was made by Paul (Grampa)
1/2 cherry wood on a 1/16" BB backer. (7.7"x4.8")
Spray painted the top of the backer black before gluing it together.
finished with clear lacker.
I used the card from Steve and glued it on the back, couple of layers coat over it.