Here's a polished one Mike posted which showed innards from a different perspective ...
http://marbleconnection.com/topic/7520-under-the-onions-skin/?do=findComment&comment=138785
Wow at that beauty!
I couldn't remember ever hearing of anyone seeing one over 3/4". And I should have known what size No. 4 was, but for some reason I wasn't letting myself realize it was over 3/4". I needed that fact poured into my head again.
Thanks Dan and Brian.
You do need to find someone who will love the set. I hope you find someone who will keep it together and appreciate it as a piece of history. A piece of the life of a serious marble player.
The second marble from the top might be a Moonie. Possibly an Akro Moonie.
That would be another of the collectible solid colored ones. If you hold it up to a light does it look orange when you look through it?
The red and yellow at the bottom looks like a peltier Rainbo, which might be one of the more modern marbles in the bunch. That style was introduced in the 1930's and made for some time after that. But still definitely vintage.
The red which light gets through easily might be an Akro Flintie, which was a nice marble. And which is one of the collectable solid-colored marbles.
I might be seeing a brick.
Another of the marbles might be a hand-gathered slag ... or something handgathered.
Plus more which look like stone. That actually was a pretty nice little group for a serious marble player.