There is usually a part number printed on the board. Google that part number to see if you can find anything.
Removed circuit Board - specific part number absent - "Roast - Main 2001, 06, 07"
I am wondering if there are companies that are producing circuit boards, I want to buy a few for my old machines. There is a lot of work to do and I would like better to buy ready ones than to make them by myself. Recently I studied a guide of understanding circuit boards and it is very interesting if being honest. Personally I didn't find it that hard but there is a lot of work to do, but I have more important things as well. So I would be glad if anybody knows someone who can do this for me.