I spent some time today doing a search on 1953 Brooklyn Dodgers Team Signed Baseballs. The prices range from $200 to $15,000. This looks like more of a minefield than swords and daggers. Most have COA's attached, I've seen enough games played with them. One ball looks like it was signed by a felt tipped pen, it has a COA. I'm not sure what I'll do with this.