Info| Date | 2010, 13 V |
|---|---|
| Value | 2x EKONOMIBREV |
| Catalog no. | Mi 2766 - 2767 Sc 2637b - 2637a SG 2665 - 2666 Y&T 2745 - 2746 |
| Topic | Naszarkowski, Piotr |
| Occasion | Bicentennial of the Karolinska Institutet |
| Description | Series of 2 stamps engraved by P. Naszarkowski. The pictures show selenium(left) and silicon (right). |
