Thanks!

Based on that description, the ball is probably in good to very good condition. The signatures will grade a bit lower because some are light. Based on all the signatures and my records, a 1986 ball in very good condition with a fairly good grade on a the signatures should have a current market estimate in the range of $150 to $200.

If you’re interested in selling the baseball, you'd might consider getting it authenticated. An autograph that is not authenticated by a creditable company won't sell as well, so you definitely want to possibly see about getting it authenticated, graded, and possibly appraised. Two top authenticators are PSA/DNA, and James Spence Authentic (JSA). They're 2 of the go-to associations.

For selling it, you might contact Steiner Sports. They do some authentication, but they also buy/sell items. You might also consider contacting Heritage. They deal a lot in baseball memorabilia. Auctions generally do very well with them and they come highly recommended.

There's also:
http://www.lelands.com

http://scpauctions.com/

Both have experience in baseball memorabilia.

Once you have certificates you might consider Ebay, but definitely use a reserve.

If I can be of any further help or you need something more, don't hesitate to contact me. Please click accept and one of the smiles if I have been of any help, since this is the only way we are compensated by JA.

Thanks and have a great weekend,
Diana