I have a few items in my collection that a fellow collector is interested in but I cannot give him a price because I do not know what they are worth and the offer he is making seems to be low. Perhaps someone with more knowledge can help me? ere is what I have:
Chicago Cubs coaches helmet, mint condition signed by every player who has had their number retired by the Cubs (Santo, Banks Williams, Maddux, Sandberg and Jenkins) I also have a mint official ball with the same signatures

Carl Yastrezmeski game used home Red Sox jersey from his final season of 1983. Made by Wilson, size 46. I had the opportunity many years ago ti meet him and he not only autographed the jersey but added "Gamer" to it.

Any help would be greatly appreciated. Thanks
Sarahsdad
wavelandandaddison@hotmail.com