Williams often made 2 sets of stencils for 2 different cabinet companies many times. We were selling so many pinball machines that we required at least 2 if not 3 "wood butchers" to keep up with demand, and they were Electronic Sound, Churchill Cabinet, and sometimes Lenk-Smith. There may have been others as well.

I seem to remember that we got the brick pattern Masonite for cabinet bottoms because of a production shortage of un-printed Masonite. The tacky brick pattern stuff was popular for paneling basements. Williams probably paid less for the printed stuff, and it was probably all that could be had at the time.

Particle board (MDF) was experimented with on pinball cabinets, and a few were built with disastrous effects. This was due to wishful thinking on the part of some "new guy" engineers and greed on the part of Williams' management.

A group of us condemned the concept because we knew that there was no hope of making an MDF cabinet that would be as durable (and light!!..operators hated the already-heavy pinball machine becoming obese, and the increased shipping weight and $$) as plywood.