HELP...what is it????

I found this a couple weeks ago at a local antique shop. I have looked in every price guide, ebay, web search. I can not find any info/value/non value anywhere.
front says 20 cards from the first game to the founding of the majors 7 hall of famers the men who put it together
the back says....from unretouched 19th century masters (text and art) going to the game today aug 1876 then it has 2-3 paragraphs about president u s grant and about players in the game. bottom of card has...
flatbat industries
po box 201454 minneapolis mn 55420
baseball hall of fame members
spalding anson cartwright welch brouthers keefe kelly
1987 scholle & scholle ltd
Thanks for any info
front says 20 cards from the first game to the founding of the majors 7 hall of famers the men who put it together
the back says....from unretouched 19th century masters (text and art) going to the game today aug 1876 then it has 2-3 paragraphs about president u s grant and about players in the game. bottom of card has...
flatbat industries
po box 201454 minneapolis mn 55420
baseball hall of fame members
spalding anson cartwright welch brouthers keefe kelly
1987 scholle & scholle ltd
Thanks for any info

0
Comments
Zip codes went into effect on July 1, 1963. ZIP stood for Zone Improvement Plan
With the company that made it listing a zip code in the address at least you have a starting point.
Edit: of course I misread this line: 1987 scholle & scholle ltd
making my above posting sound really stupid. Guess I need to get some sleep.