Since the Rampacher catalogue in 1951 and the Pén catalogue in 1981, no new catalogue for Swiss vignettes has been published. For new collectors this is regrettable. Even the advanced collector needs an up-to-date catalogue.
This ABC catalogue was created according to the design of the Pén model. Some of the data is taken from the Pén catalogue, this printing company no longer exists. Unfortunately, I was not able to contact representatives of the Pén printing company, even some Swiss authorities could not help me. A big thank you goes at least to the Pén printing house at that time.