swiss national park with piz nair and buffalora in the western rhaetian alps in eastern switzerland art deco wpa poster art

administration alpine alps area art arts artwork buffalora conservation deal deco design eastern engadin europe european federal forest fuorn graphic illustration landscape monument mountain nair national natural nature new park pass pictorial picturesque piz portrait poster print program project protected retro rhaetian scenery schweizerischer suisse svizzero swiss switzerland travel valley vector vintage visual western wilderness works wpa