XAVIER

Signature: unknown

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YAJIMA, Koichi

Signature: "Koichi" and year

 

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YARGER Jr., Dave

Signature: unknown

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YAUN, James

Signature: unknown

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YINZER, Christi Na

Signature: unknown

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YOSHIKAWA, David

Signature: signs in Kanji with date

  

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YOUNG, Scott

Signature: unknown

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YOUNG, Troy (clay marbles)

Signature: unknown

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ZEAL, Jacob

Signature: unknown

   

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ZIMMERMAN, Kerry and Bart

Signature: unknown

Picture shows a paperweight because I didn't find a marble pic

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ZINSER, Margareth

Signature: "MZ" and year

         

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ZIPER, Craig

Signature: unknown

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