Thanks for posting these. In the third issue/ad - they use the term "ring men" to describe the largest marbles Akro made. That is the first time have encountered this term traceable back to the Akro company's official use. That is an interesting fact for future reference. I assume they are referring to 7/8 - 1" diameter.
Over time - names have been invented by people in the hobby to describe specific marble styles. I think that such inventions slowly take us further away from the history of these companies, their marbles and the naming conventions that were used in the day they were produced.
In any case - I'm going to look through the other ads to see what might be learned.
Thanks again,
Alan