Well, what do you know? We DO have The Punctuator! This one indicates it was revised in 1977. It doesn't mention the other two wheels in the series, so maybe this is the first one. Its 8.375 inches square, just like The Writer, and is in pretty good shape.
I like some of the sentence examples:
Frankly, my uncle is a perfectly normal fat-head, a "square".
When you are prepared to apologize, I shall listen to you.
The tenor saxophone sobbed on; and the dancers, hypnotized, stared at each other with glazed eyes.
Billy's hair was dripping; he'd been swimming in the drainage ditch again.
Matilda ran out into the dark, waving her hands and shouting.
The Punctuator was written by Horace Critchlow in 1961. He must certainly have been a punctuation pedant with a name like that. But you have to hand it to him: he could write a good sentence.