Vintage Bowling Ball Appraisal

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Ebonite Gyro Balanced Urethane Bowling Ball

This is a vintage Ebonite Gyro Balanced urethane bowling ball, identified by its solid royal blue color and distinctive white engraved markings. The ball features the 'Gyro Balanced' logo prominently on the side, consisting of stylized orbital rings and dots. Below this, the material 'Urethane' is marked alongside the proprietary name 'Curo I'. The top of the ball is custom-engraved with the name 'RON' above the finger holes. It is a standard adult-sized bowling ball with a traditional three-hole drilling pattern (two finger holes and one thumb hole). Physically, the ball exhibits significant signs of use, including numerous surface scratches, scuffs, and small nicks consistent with repeated lane play and contact with pinsetters. Notable dark, circular smudges or lane oil stains are visible near the finger holes, suggesting it has not been recently polished or cleaned. The urethane coverstock indicates this ball likely dates from the 1980s or early 1990s, an era when urethane technology transformed the sport by providing better traction on oily lanes compared to older plastic or rubber balls. The craftsmanship reflects the standard industrial manufacturing for competitive sporting equipment from the late 20th century.

Estimated Value

$40.00 - $60.00

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