Beginning in 1938, the Swiss PTT began issuing an annual semi-postal stamp or set coincident with Swiss National Day, August 1. Each year specific charitable goals are established for the non-postal portion of the stamps' value. In 1938, for example, the charitable proceeds were used to benefit needy Swiss citizens overseas.

Tell Chapel at Lake Lucerne 1938 Laupen
Castle 1939

Souvenir Sheet, 1942

Antique Post Office Signs 1981