The American Helvetia Philatelic Society (AHPS) is an organization dedicated to the study and enjoyment of the stamps and postal history of Switzerland. The AHPS holds an auction three times each year. Participation as buyer or seller is restricted to AHPS members. For membership information, please contact Paul Sobon at

The stamp lots for auction number 190 are shown on this page.  This auction offers early Swiss stamps and a large number of first day and flight covers.  A number of regular covers containing complete sets as well as Service issues are also included.

The deadline for bids is April 15, 2024. For bidding instructions and the lot descriptions, please click here –> AHPS #190 listing The auction and lot descriptions are also published in the AHPS journal, Tell.

The first catalog number in the description is generally the 2023 Schweizer Briefmarken Katalog (SBK), followed by Scott (S) as appropriate. Values are from the 2019 Zumstein catalog. Airmail covers are listed and valued per 2013 Schweizerisches Luftpost-Handbuch where appropriate. Catalog values are converted to US dollars at the rate CHF 1 = US$ 1. Although the Swiss Franc is a little higher than the US Dollar it makes pricing a lot easier.

Bids may be sent to the Auction Manager, Gerry Diamond, at . Bids will be quickly acknowledged.