Caspian Tern, Finland 1951

Finland · 1951 · 20 mk

The stamp depicts a Caspian Tern (Hydroprogne caspia) in flight, with the country name and denomination at the bottom. It was designed by Signe Hammarsten-Jansson and engraved by Alexander Laurén.

This stamp is part of a series issued with a charity surcharge, with proceeds benefiting the society for combating tuberculosis. Such issues were common in the mid-20th century to raise funds for public health initiatives.