Original ticket stub from Milwaukee Braves @ Pittsburgh Prates game, May 31, 1958 at Forbes Field Pittsburgh.
With Warren Spahn pitching, the Braves beat the Pirates 8-3.
Hank Aaron, Eddie Mathews, and Wes Covington hit "back to back to back" homeruns in the first inning off pitcher Ronnie Kline.
This was labeled the "Boom Boom Boom" game, back in the day, and was considered a monumental achievement in 1958.
According to the Pittsburgh news account, the feat was accomplished on three consecutive pitches. 
I was able to find an image of the three players, likely taken during the 58 season,
as well as a photo of Aaron and Mathews holding three baseballs.  Not sure of the individual on the left.
Materials and images used in research are for review only, and NOT included with the item for sale in this listing.
This original 1958 Forbes Field ticket is in EX condition and measures 2-5/8 x 1-3/8.  
There are NO creases, stains, writing, or scrapbook remnants. 
This ticket is from First Floor Box 3.
The ticket was photo'd inside the plastic holder and removed to show the fine condition.
FYI -- We are also offering a second ticket (side by side to this one) in another listing.   Same condition and is Seat No. 3