This came out of an active public utility printing plant in, I think, the early 1980’s. It was used for job scheduling until computers took over that task, and my father liberated it from the trash. There used to be MASSIVE baseplate mounted on wood, but it got thrown out at some point in the past. Sadly not too much variety in the blocks I have, but it’s fun little stuff! Most have the Modulex “M” logo on them, but a couple colors have the Lego logo. submitted by /u/Materidan [link] ...