National Philatelic Exhibition NABA 1971, Basel 1971
Now showing: Switzerland - Postage stamps - 1971 - National Philatelic Exhibition NABA 1971, Basel - 1 stamps.
1971
National Philatelic Exhibition NABA 1971, Basel
11. March WM: None Engraving: Courvoisier. S.A. Perforation: Imperforated
![[National Philatelic Exhibition NABA 1971, Basel, type ]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/0940-b.jpg)
