Pro Patria -Castles on Stamps of Switzerland 1977

The theme for Pro Patria issue of 1976 was Castles. Swiss Post issued a set of Four Stamps on 26 May 1977. A FDC  with First Day Cancellation of Bern is listed.

The Castles featured on stamps are

20+10 ct – Aigle Castle (Waadt Canton)

40+20 ct – Pratteln ( Basel Canton)

70+30 ct – Sargans ( St Gallen Canton)

80+40 ct – Hallwil Castle  (Aargau Canton)

SWISS FDC PATRIA 77
SWISS FDC PRO PATRIA 1977 -CASTLES