Bert Blyleven
National Baseball Hall of Fame Pitcher · Baseball - MLB
Minnesota Twins / Texas Rangers / Pittsburgh Pirates / Cleveland Indians / California Angels
Era
Modern Era - Likely signed between 2011 and present
Item Type
Baseball
Condition
Excellent - The signature is bold with no fading; the ball shows minor surface dust but no significant toning or spotting.
Rarity
Common; Blyleven is a prolific and gracious signer through the mail and at public appearances.
Overall Assessment
A genuine, high-quality example of a Hall of Fame pitcher's signature on a budget-friendly medium. Ideal for a Twins fan or a collector building a Hall of Fame ball set.
Authenticity Assessment
Highly likely authentic (95%+ confidence)
Signature Style
Stylized script; featuring a distinct 'B' with a large, looping 'y' that extends over the latter half of the last name.
Signature Characteristics
Fluid motion, upward slant, consistent pressure, and a signature 'y-loop' that acts as a roof over the small 'leven' letters.
Ink & Medium
Blue ink ballpoint pen on an oridinary leather/synthetic baseball surface.
Item Description
A non-official or souvenir-grade baseball (indicated by the thick red stitching and Lack of MLB Commissioner branding on the visible panel).
Estimated Value
$30.00 - $60.00 USD
Comparison to Known Examples
Matches post-2010 Hall of Fame exemplars perfectly; shows the mature, practiced hand of his later years.
Authentication Tips
Look for the 'halo' loop created by the 'y' and the characteristic bridge between the first and last names. Ensure the strokes are fluid without 'stop-and-start' hesitation.
Certification Recommendation
JSA or PSA/DNA (though the cost of authentication may exceed the item's current market value).
Red Flags
No significant red flags observed; the flow is natural and consistent with his muscle memory.
Provenance Notes
Commonly obtained at Twins Spring Training or via paid private signings. Documentation is rarely provided for items at this price point unless part of a larger lot.
Historical Context
Blyleven is 5th all-time in career strikeouts (3,701) and was a key part of two World Series championship teams (1979 Pirates, 1987 Twins).
Market Trends
Stable; as a Hall of Famer, there is constant demand, but high supply keeps prices affordable for most collectors.
Investment Potential
Low; primarily a personal collection piece rather than a wealth-building asset due to high availability.
Similar Autographs
Nolan Ryan, Jim Kaat, Jack Morris, Tommy John.
Display & Preservation
Keep in a UV-protected acrylic cube; avoid direct sunlight to prevent the blue ink from fading into the ball.
Interesting Facts
Blyleven was famous for his 'curveball' and his quirky personality, often being the 'hot foot' prankster in the dugout.