Stamps of San Marino, 9th centenary of the University of Bologna issue
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postage
1988, May 7 9th centenary of the University of Bologna issue unwmk (no perf info)
| - | 550l | multi | Merchants palace | |||
| - | 650l | multi | Podestà palace | |||
| - | 1300l | multi | Bologna city | |||
| - | 1700l | multi | Ateneo |
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