Legit Mantle signatures on Yankee balls are fairly prevalent through about 1956 or 1957. After that about 80-90% of the balls have a clubhouse Mantle. I had a 1961 with a real Mantle and Maris with very faded signatures and it still fetched nearly a thousand dollars. Depending on the strength of the signatures I would say that around $3,000-$4,000 could be the right ballpark...or closer to $1,200-$2,000 for lighter signatures. Regardless it is a terrific item.
Tom C:
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