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.

Leipzig 500 Years of University Private Postal Stationery 3 Pfennig Germania 1909 *
12,00 EUR
Leipzig Bismarck Tower private postal stationery 1915*
29,00 EUR
Leipzig Bismarck Tower private postal stationery PP27F31 o Gohlis April 28, 1915
29,00 EUR
Leipzig Bismarck Tower private postal stationery 1915*
15,00 EUR
Leipzig XII. German Gymnastics Festival 1913 special stamp July 15, 1913
12,00 EUR
Leipzig 12th German Gymnastics Festival 1913 Private stationery for gymnastics father Jahn
29,00 EUR
Versailles 30 years of imperial proclamation private postal stationery Kaiser Wilhelm 1901 *
9,00 EUR
Versailles 30 years of imperial proclamation private postal stationery Kaiser Wilhelm 1901 o Liegnitz 18.1.1901
9,00 EUR
Konigsberg 200 years of Prussia private postal stationery Kaiser Wilhelm 1901 o Halle January 18, 1901
9,00 EUR
Kiel Philatelist Club Private Postal Stationery 2 Pfennig Germania Reichspost *
9,00 EUR
Essen celebratory postcard for the centenary of the Krupp private postal stationery o August 25, 1912
6,00 EUR
Mannheim 150 Years of the Jesuit Church Private Postal Stationery 1907 *
12,00 EUR
Berlin postal stationery collectors' association private postal stationery 1915
19,00 EUR
Otto von Bismarck 100th birthday private postal stationery 1915
29,00 EUR
136 to 150 (from a total of 224)