If its about a detail of a particular card I will answer as soon as I can but that might not be straight away.
Postcard SWITZERLAND Rigi Bahn steam loco 10 Schnurtobelbrücke No fee PA37
Postcard SWITZERLAND UDB CF Rochers de Naye steam loco 6 No Buyers fee PA44
Postcard SWITZERLAND UDB Gotthard Tunnel Expresszug No Buyers fee PA38
Postcard SWITZERLAND Paßhohe Photoglob Zürich No Buyers fee PA39
Postcard SWITZERLAND funicular Pilatusbahn 1907 No Buyers fee PA31
Postcard SWITZERLAND UDB railway CF de Leysin No Buyers fee PA26
