Private postal stationery

Private postal stationery are cards or envelopes with the official Swiss Post stamp printed on them, which were additionally provided with advertising or views at private instigation.
Around the turn of the century (1900) these were used very frequently for exhibition cards and are generally much rarer than similar cards with conventional postage stamps.

Wroclaw Centennial celebration 1913 exhibition private postal stationery P 94 II day stamp June 14, 1913 
15,00 EUR
Frankfurt Main 17th German Federal Shooting Private Postal Stationery Day Stamp July 16, 1912
19,00 EUR
Frankfurt Main 17th German Federal Shooting Private Postal Stationery Special Stamp July 12, 1912 
25,00 EUR
Berlin Romanesque house private postal stationery Germania 2 Pfennig Reichspost o July 17, 1900
25,00 EUR
Red Cross Kreuzpfennig Collection 1914 Private Postal Stationery Germania *
19,00 EUR
Wroclaw  Postage stamp exhibition 1913 private postal stationery special stamp August 23, 1913
49,00 EUR
Wroclaw  Postage stamp exhibition 1913 private postal stationery day stamp April 4, 1914
39,00 EUR
Frankfurt Main Eleventh German Gymnastics Festival 1908 Private postal stationery special cancellation July 18, 1908
19,00 EUR
Frankfurt Main XI. German gymnastics festival 1908 private postal stationery special cancellation July 20, 1908
19,00 EUR
Frankfurt Main XI. German gymnastics festival 1908 private postal stationery *
19,00 EUR
Dresden Herm. Muhlberg children's cloakroom private postal stationery with reply card o February 24, 1913
119,00 EUR
Lockwitz Dresden Rugers Cocoa Chocolate Private stationary railway postmark
TOP
99,00 EUR
Dresden German Building Exhibition 1909 Private postal stationery Reichsbau Group *
19,00 EUR
Dresden German Building Exhibition 1909 Private stationery 1st main prize *
19,00 EUR
Dresden German Building Exhibition 1909 Private stationery 1st main prize *
19,00 EUR
106 to 120 (from a total of 224)