"200 years Tourism"
Issue date: 4th September 1987
The four stamps were issued in sheets of 50 stamps and in a miniaturesheet.
1) Zytturm, city of Zug, the small peak in the background is Mt. Pilatus.
2) San Carlo, Negrentino
Hexenturm, city of Sion
4) Jörgenberg Castle, Piz Sezner in the background