From Wikipedia:
The 1931 Philadelphia Athletics season involved the A's finishing first in the American League with a record of 107 wins and 45 losses. It was the team's third consecutive pennant-winning season and its third consecutive season with over 100 wins. However the A's lost the 1931 World Series to the St. Louis Cardinals in seven games. The series loss prevented the Athletics from becoming the first major league baseball team to win three consecutive World Series; the New York Yankees would accomplish the feat seven years later. The Athletics, ironically, would go on to earn their own threepeat in 1974, some forty-three years after the failed 1931 attempt.

1931 was also the A's final World Series appearance in Philadelphia. Their next AL pennant would be in 1972, after they had moved to Oakland.

From Strat-O-Matic Old Timers set (OOP).  The 20-card set has blue ink on cut card stock and is for Basic play only.  The cards are in very good condition but do have writing on them showing additional stats and ratings and some stains from handling and game play.

Please see the scans for card examples plus a list of players included and season stats.

Shipping Policy:
If you are bidding on more than one auction, please wait for my invoice to take advantage of shipping discounts (see below) and to help me avoid extra eBay fixed fees.

Will combine shipping for multiple purchases:  $4 for 2-3 teams (bubble envelope with tracking), $5 for 4 or more teams (bubble envelope with tracking).  If you use Buy It Now for multiple purchases, I will refund by PayPal any excess shipping fees paid.
Buyer Incentive: Once your to-date purchases from me hit $100, I will ship your next order for free.  All of my Strat card sales are tracked by buyer so send me a message if you want to know your total.
The stat sheet will be included and the cards will be shipped in a team bag.
Please see my other auctions if you are looking for other Strat teams.  Thanks for bidding and contact me with any questions.