They Call Me Thumper, from the private collection of Marshall A. Nimetz, NY. No COA, Pease read bellow and see all pics for details. While a missing Certificate of Authenticity hurts raw production art, it is less of a barrier for a well-documented commercial sericel like this one. Buyers can easily verify its legitimacy because the character stance and background composition perfectly match the official 1997 release.The Collector's Signature: The signature of Marshall A. Nimetz adds fascinating historical provenance, pointing directly to a specific private collection. However, since it is a collector's mark rather than an animator's autograph, it functions more as a unique conversation piece rather than a premium value multiplier.!Key Value Factors for Your Specific Piece
• The Frame and Condition: Your piece benefits significantly from having high-quality, professional custom framing. The double-matting and striking blue borders complement Thumper beautifully, making it immediately display-ready. In secondary markets like , a beautifully framed piece can command the higher end of the pricing spectrum around $200-$350 compared to loose, unframed cels which often sit closer to $100-$150.
Final Estimate
If you were to list this online or sell it to a collector, a realistic valuation in its current framed state is $350.

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