Autographed ball collection for sale

I have the following balls for sale as a lot. All balls are from my nephew's childhood collection. All signed in person thru various shows across the tri-state area roughly 9 -15 years ago. Due to not being authenticated by a third party I'm not quite sure as to real value so I will let you autograph guys decide it's value by making offers. Below is a list of balls available. I would prefer to sell as a lot. If no one is interested please feel free to offer me some advice on them as I am also interested in them but don't want to short change him on a monetary price. Here is the list and scans are available. I will get some pics up tonight or pm me for real closeups. Most of these balls are aged and toned. If not happy I will offer a 100% refund less shipping. Please no games with this though. I'm very confident in the authenticity of these balls. I have references so please PM if they are needed. Thanks. Dave D.
Duke Snider
Ed Mathews
Brooks Robinson
Johnny Bench
Willie Stargell
Rickey Henderson
Bob Feller
Hoyt Wilhelm
Robin Roberts
Phil Rizzuto
Don Sutton
Steve Garvey
Paul Konerko
Gary Carter - ball is aged and in thin sharpie (sweet spot for carter) (other sigs on ball include Spike owen, Tim Wallach, Ken Hill (I think), Ivan Calderon (I think), and a couple others I can't make out)
Gary Carter - (sweet spot) virtually the same ball but ball is clean (sharpie also)
Dave Winfield - (along with Tom Henke, Pat borders, Devon White (I think) and a few others I can't make out. Also in blue thin sharpie.
Bench
stargell
robinson
rizzuto
henderson
winfield
roberts
mathews
Duke Snider
Ed Mathews
Brooks Robinson
Johnny Bench
Willie Stargell
Rickey Henderson
Bob Feller
Hoyt Wilhelm
Robin Roberts
Phil Rizzuto
Don Sutton
Steve Garvey
Paul Konerko
Gary Carter - ball is aged and in thin sharpie (sweet spot for carter) (other sigs on ball include Spike owen, Tim Wallach, Ken Hill (I think), Ivan Calderon (I think), and a couple others I can't make out)
Gary Carter - (sweet spot) virtually the same ball but ball is clean (sharpie also)
Dave Winfield - (along with Tom Henke, Pat borders, Devon White (I think) and a few others I can't make out. Also in blue thin sharpie.
Bench
stargell
robinson
rizzuto
henderson
winfield
roberts
mathews
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