Stamps of India, 50th Anniversary of Birbal Sahni Institute of Palaeobotany issue
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postage
1997, Sep 11 50th Anniversary of Birbal Sahni Institute of Palaeobotany issue wmk. Asokan capital (no perf info)
| - | 2r | multi | Fossil of Birbalsahnia divyadarshanii | |||
| - | 2r | multi | Glossopteris | |||
| - | 6r | multi | Pentoxylon | |||
| - | 10r | multi | Williamsonia sewardiana |
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