Depends if some of them are HOF's I would pay about $500 thousand
Napoleon kaufman
Who has worn #51 for the Oakland Raiders
Click on the 'NFL Rosters from 1920' link on this page to learn not only who some of the Oakland Raiders are but to see anybody on any team starting from the NFL's inception in 1920.
George Plimpton in 1973 Although there may have been others, Jim Otto played center for the Oakland Raiders in the early 60s and wore the number "00."
your mom ; your dad ; and your fat grandma
All NFL teams carry 53 players on their roster of which 45 can dress for a game.
Offensive tackle John Vella who played with the Raiders from 1972-1979.
Al Kaline played baseball for the Detroit Tigers. He is a member of the Baseball Hall of Fame. Marcus Allen played football in the NFL for the Oakland Raiders and the Kansas City Chiefs. He is a member of the College Football Hall of Fame and the Pro Football Hall of Fame.
It would depend on the players who signed the football. Check eBay for similar products to get a good estimate of what someone would pay for it.
An Ahman Green autographed football doesn't hold a very high value compared to some players. On average, you can sell one for $80 to $100.
There were two NFL players that wore 00:1) Jim Otto, center for the Oakland Raiders between 1960-1974.2) Ken Burrough, wide receiver for the New Orleans Saints and Houston Oilers between 1970-1981.
There was a Chevy "oil change" commercial for a while that featured multiple famous athletes. One of the athletes was Howie Long, who played defensive end for the Oakland /LA Raiders between 1981 and 1993.