Fleer used these stickers as inserts in the waxpacks of their "Baseball Greats" cards of the early 1960's. Each commemorates a different World Series from the 20th century with the logo of the winner, and the number of games won by the winner and the loser.
They have been in my collection since I unwrapped them from a waxpack over half a century ago, and are in excellent, unused condition.
the $6.00 shipping charge allows me to send them to you by Certified Mail.