Talk:World Stamp Catalogue/Basel (Switzerland)

Exact issue dates of some issues
Gainon does not mention specific issue dates of some stamps. Many of the vertically imperforate, horizontally perforated ones with the large hole in the centre of each perforation line have this problem. I assume these were all issued in the early 1940's. Can anyone shed a light on this matter? Arno-nl 15:37, 27 December 2016 (UTC)

Information about engravers, designers, printers?
Does anyone have information about the stamp engravers, designers and/or printing companies?Arno-nl 06:47, 21 January 2017 (UTC)