Pierre de Maupertuis
Finland
1986. 250th Anniversary of measurement of arcs of meridian
| SG1108 | 1 markka 60 | Maupertuis |
First day cover
Silk first day cover
France
1986. 250th Anniversary of measurement of arcs of meridian
| SG2735 | 3 francs | Maupertuis & Condamine |
International exhibition card
First day cover
Silk first day cover
Maxi card
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@ Hung