| 1964 2d Catholic Doctors Conference, top right corner marginal vertical strip of 4, SG 318, MUH. Variety |
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| 1964 2d Catholic Doctors Conference, top right corner marginal vertical strip of 4, SG 318, MUH. Variety - bottom stamp retouch through "O" in Congress
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Item #: INV-52440
Condition **
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