Pneumatic Baseball
 

Has anyone heard of a Pneumatic League Baseball? I saw this ad in a large group of magazine clippings for sale on ebay.

Attachment 405978

Nobody has any information? Or maybe one of these baseballs?

1907 Hardware Dealers Magazine
 

Found in a 1907 "Hardware Dealers Magazine" under "new Goods and Inventions"

https://live.staticflickr.com/65535/...2b82645d_h.jpg

Thanks for the info. I wonder if there are any pneumatic baseballs still in existence?

https://www.ebay.com/itm/Nap-Lajoie-...gAAOSwo91bfh8g

someone on ebay selling a pneumatic baseball ad cut out of something, with Nap Lajoie endorsement of. He says "freely that it is all right . . . great ball for the game."

Interesting that they have an endorsement from a major player, but I had never heard of the Pneumatic Baseball before and can't find an example anywhere.