Multiple Signers (Team Signed Baseball, primarily featuring Joe DiMaggio and teammates)
Major League Baseball Players and Hall of Famers · Baseball - MLB
New York Yankees (implied by the era and key signature)

Era
Late 1940s to early 1950s (based on the Official American League Leo MacPhail stamp)
Item Type
Official League Baseball
Condition
Good to Very Good vintage condition, showing moderate toning, yellowing of the leather, and typical fading of vintage ink signatures.
Rarity
Scarce, particularly vintage team-signed balls from championship New York Yankees eras featuring primary stars like Joe DiMaggio.
Overall Assessment
An appealing and historically significant vintage multi-signed baseball from the golden era of baseball, highly collectible provided individual key signatures pass rigorous third-party authentication.
Authenticity Assessment
Likely authentic - requires in-hand professional third-party authentication due to the complex nature of multi-signed team balls.
Signature Style
Cursive, individual player signatures written across the sweet spot and side panels with fountain or ballpoint pen in dark ink.
Signature Characteristics
Fluid vintage cursive with natural baseline variations, consistent pen pressure appropriate for fountain pens of the period, and typical letter-form formations of mid-century athletes.
Ink & Medium
Vintage fountain pen or early ballpoint pen with dark blue or black ink showing natural aging and fading.
Item Description
Official American League baseball (Leo MacPhail president stamp visible) featuring multiple team member signatures, including a prominent sweet-spot signature.
Estimated Value
1,500 to 5,000 USD depending on the exact roster composition, condition, and full third-party letter of authenticity.
Comparison to Known Examples
Signatures match the general cursive style and formation habits of late 1940s baseball players, showing natural hand tremors and varied pressure expected from authentic period signatures.
Authentication Tips
Examine signature placement relative to sweet spots, check for secretarial or stamped signatures, verify ink consistency across multiple signatures, and compare against known exemplars of star players from the era.
Certification Recommendation
PSA/DNA or JSA (James Spence Authentication)
Red Flags
No obvious red flags or modern pen usage observed, though multi-signed balls always carry a risk of clubhouse or secretarial signatures mixed in.
Provenance Notes
Family descent or old estate discovery is typical for balls of this era; keeping any accompanying old notes, ticket stubs, or vintage photographs helps solidify provenance.
Historical Context
Representing the golden age of baseball, post-WWII Yankees teams dominated Major League Baseball, making items from this era highly prized by baseball historians and memorabilia collectors.
Market Trends
Stable to appreciating for vintage Hall of Fame team-signed baseballs, especially those anchored by iconic New York Yankees stars of the golden age.
Investment Potential
Strong long-term hold; vintage baseballs authenticated by top-tier services tend to appreciate steadily due to a fixed supply of period artifacts.
Similar Autographs
1941, 1949, or 1951 New York Yankees team-signed baseballs, single-signed Joe DiMaggio baseballs, and vintage Mickey Mantle multi-signed items.
Display & Preservation
Store in a UV-protected acrylic display cube away from direct sunlight, maintaining stable room temperature and low humidity to prevent further leather toning and ink fade.
Interesting Facts
Team-signed balls from the late 1940s often contain a mix of star players, bench warmers, and coaches, and sweet-spot placement was often reserved for team captains or star players like Joe DiMaggio.