150th Anniversary of the Diet of Porvoo

Finland · 1959 · 30 mk

The stamp features a stylized depiction of the Diet of Porvoo, with figures gathered around a table, commemorating its 150th anniversary. The denomination '30 mk' is visible in the lower left corner.

The Diet of Porvoo in 1809 was a pivotal event where Finland, then a Grand Duchy under Russian rule, affirmed its laws and autonomy, marking a significant step in its national identity.