| Thomas A. Ericson, M.D., private collector | 515-771-9026 |
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| George D. Maurer, Sr., private collector | 216-544-2730 |
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| Kate Ross, private collector | 803-646-2300 |
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| Jack D. Polcar, private collector | 440-943-1172 |
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| Ms. Nancy Prizant, private collector | 515-277-1608 or 515-457-7731 |
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| Jay Kraft, private collector | 936-894-1200 |
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| Chris Kiefer, private collector | 717-495-5004 |
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| Phyllis Pearson, Attorney at Law (private practice) | 515-727-0986 |
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| Beverly A. Davis, private collector | 914-466-3386 |
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| Sandra Greenblatt, P.A., Attorney at Law, private collector | 305-577-9995 |
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| Phillip Hayne, Attorney at Law (Principal Financial Group, Trust Department) | 515-247-5059 |