Marx introduced this playset after the first season of the show, and all of the pieces in the set were based on what they would have seen during those first 28 episodes. Here's one of the figures that becomes a bit controversial. Some people say he's Mr. Slate (Fred's boss at the quarry), while others say he's the grocer for the Super Market building, while others use him as the waiter at the Snack Bar. He's a bit short to look over the counter of the Snack Bar properly, but a coin placed under his base will rectify that. Me personally, I always used him as Mr. Slate. The arguments I can see for him not being Mr. Slate is that Mr. Slate was always depicted with a necktie while the Marx figure has a bowtie and, there was no element in the Marx playset which suggests a quarry.
Ed
Mr. Slate
Rocky Stone
Waiter / Grocer / Mr. Slate
