Vintage(?) Babe Ruth / MacGregor / Roadmaster Advertising Piece
 

I posted this on the main page but didnt get any responses so I'm hoping to have better luck here......It will be FS once I get a bit more info on it.

I found this in an antique barn while traveling down to GA with the family last week. Guy wanted $50 for it but took my $25 offer....I thought it was interesting but can't find any info on it or info on the artist (Brad Rock). Does anyone have any idea or info about it? Age? History? Value? Says it's "limited" to 225. I am at work now but if I had to guess the size, I'd say it's close to a 16 x 20.
Any and all opinions, thoughts, and info is appreciated! Thanks
http://i1095.photobucket.com/albums/...730_042432.jpg
http://i1095.photobucket.com/albums/...730_042438.jpg
http://i1095.photobucket.com/albums/...730_042447.jpg
http://i1095.photobucket.com/albums/...730_042451.jpg