Thurman Munson (bottom signature) with Roy White (middle) and Pete Ward (top)
Yankees Captain and 1976 AL MVP (Munson) · Baseball - MLB
New York Yankees

Era
Late 1960s to mid-1970s (likely circa 1970)
Item Type
Multi-signed Baseball
Condition
Poor to Fair. Significant fading of the ink, particularly in the Munson signature. The ball shows yellowing (toning) and lacks a manufacturer stamp, reducing its display value.
Rarity
Thurman Munson is a high-rarity signer due to his tragic death in 1979 at age 32. He is the 'holy grail' for many Yankees collectors.
Overall Assessment
This appears to be a 'souvenir' or 'clubhouse' ball where one person signed for multiple players, or a period-typical amateur forgery. Not recommended for purchase without a full PSA/DNA or JSA letter of authenticity.
Authenticity Assessment
Questionable - significant concerns noted. While the names correspond to Yankees teammates from 1969-1970, the signatures lack the natural fluid flow and specific letter-forming idiosyncrasies of authentic exemplars. Confidence level is low.
Signature Style
The Munson signature is a full name scrawl. The Munson 'T' and 'M' are common targets for forgers due to their loop structures, which here appear forced.
Signature Characteristics
The signatures exhibit 'slow-draw' characteristics, suggesting they may have been traced or copied from a printed source. The ink pressure is too consistent, lacking the natural heavy/light transitions of a quick hand-signed autograph.
Ink & Medium
Green ballpoint ink on a synthetic or low-grade leather baseball. The choice of green ink was occasionally seen in the era but is less common for official team signings.
Item Description
An unstamped, non-official baseball featuring three signatures in green ink. The placement is stacked on a side panel rather than the sweet spot.
Estimated Value
$100 - $300 (As-is, unauthenticated). If authenticated as genuine, a Munson ball can exceed $2,000, but the current state and quality suggest low market confidence.
Comparison to Known Examples
Unlike authentic Munson signatures which are usually bold and purposeful, this example is thin and the letter 'u' and 'n' formations in Munson are shaky and atypical.
Authentication Tips
For Munson, look for the 't' in Thurman to be uncrossed or crossed very high, and the 'M' in Munson to have a very specific 'mountain peak' flow that is absent here.
Certification Recommendation
PSA/DNA or JSA (James Spence Authentication). Use their 'Quick Opinion' service first due to the high likelihood of a negative result.
Red Flags
Uniform ink color and fading across three different players suggest they may have been signed by the same hand (clubhouse versions or forgeries). The absence of a league/reach stamp on the ball is a secondary red flag.
Provenance Notes
No provenance provided. Without a story connecting this to a specific game or 1970s event, it is treated as a 'closet find' with high skepticism.
Historical Context
Thurman Munson was the heart of the Yankees' 1977-1978 championship teams. His death in a plane crash 1979 makes his signature one of the most forged in baseball history.
Market Trends
Munson autographs are aggressively rising in value, but only for specimens with ironclad authentication from top-tier services. Low-grade or questionable items are increasingly difficult to sell.
Investment Potential
Low. The condition issues and authenticity concerns make this a high-risk item that is unlikely to appreciate without professional certification.
Similar Autographs
Collectors of this era also seek signatures from Bobby Murcer, Thurman Munson, and Catfish Hunter to complete 1970s Yankees sets.
Display & Preservation
Keep in a UV-protected cube and away from direct sunlight to prevent further fading of the sensitive green dye-based ink.
Interesting Facts
Munson was famously grumpy with the media and often signed quickly, meaning his authentic signature is usually quite 'messy' but still possesses a distinct rhythm.