Baseball nostalagial,collectibles & memorabilia price guild?

Baseball nostalagial,collectibles & memorabilia ,We have copies of the Hall of Fame plaques that are in Cooperstown,They are of Ruth,Gehrig,Ted Williams,Brook Robinson,Killebrew & Cobb.They were made by Cope enterprises Ins.Baseball mirro arts.they are13' by 23' in size,They have the pictures of the players plus stats ,Can't fine any thing on them no matter where I look,A collecter has saked to buy & we not a clue for price,These plaques are numbered 24 of a 1,000.17 of 1,000 ect ect ect.!!!!