The August 2017 thread, which begins with a discussion of another park from yesteryear, can be found at https://demu.gr/12061953 .
As mentioned in the thread, Forbes Field outfield dimensions were considerably deep. Here is an exceprt from Wikipedia at http://www.ballparksofbaseball.com/ballparks/forbes-field/ :
One level of seating extended to both the left and right field foul poles and bleachers were located in left and center fields. The scoreboard was part of the outfield wall in left field. Original dimensions at Forbes Field were 360 ft. (left), 462 ft. (center), and 376 ft. (right). . . .
After the Pirates acquired slugger Hank Greenberg they moved the left field in 30 feet to 330 feet after World War II. This area became known as Greenberg Gardens and later Kiners Korner when Ralph Kiner became part of the Pirates. Forbes Field featured an ivy covered brick wall in left and left-center field.
It seems to me that the outfield bleachers were beyond the right field, rather than the left field.
Image of Forbes Field: