Anybody know anything about Autographs and baseballs?

[Brutalfly]

I am pretty sure it is from the Pirates. Has Jim Bibby and Al Monchak those are 2 names I can make out
IMG_2171_zps575557a9.jpg
IMG_2169_zpsb6e53725.jpg
IMG_2168_zps8b56b346.jpg
IMG_2166_zpsda821624.jpg

[sid2001]

I would guess it is from 1977 when the Pittsburg Pirates were world champions. I would estimate that the ball would probably bring between $200-$400.00 at auction.
http://www.ebay.com/itm/1979-PITTSBU...p2054897.l4275

[Brutalfly]

Here are some names I am pretty sure I can make out
Al Monchak
Grant Jackson #23
Chuck Tanner
Lee Lacy
Mike Easler
Rod Scurry
Jason Thompson
John Milner
Gary Alexander
Tony Pena

[Brutalfly]

I am looking to sell this ball or maybe trade it if anybody is interested. That was a reason I started this post before I saw Sid's post. So if you are interested let me know.