In the early 1900s, the Swiss started to print special sheets for booklet panes. These sheets consisted of rows of 10, and the layout was as follows: three stamps upright, an empty stamp-size field, three stamps upright and finally three stamps inverted. Now, if you picture this in your mind, it's clear to see that these sheets yield both tête-bêche pairs and gutter pairs. And it's the gutter pairs which I'm showing you today.
The empty stamp-size field was prone to be used for the forgery of stamps, so the Swiss PTT had to do something with those field. That's why they decided to punch a hole through them. Now, the thing with these holes is, that they exist in circular form, and in not really circular form. This one here, like the first image, is of the not circular type.
And here is a more carefully produced hole, lovely and circular.
I wonder whether more than one perforator was used, with either a circular or not circular pin, or whether the not circular hole was just a matter of deteriorating material. The latter could well be the case for later, a smaller hole was punched through the paper.:-)
Adrian
As you can see, the stamp was cancelled with an ordinary Yverdon date cancel, on 16 August 1919. And this is the special airmail cancel on the back:
I've also seen them in French and I suppose there might well be an Italian version too, but I haven't come across one of those. I believe the fourth official Swiss language, Romansh, was normally never used for things like this. Whenever the Swiss did issue multi-langual stamp sets (or postal stationery), it was, as far as I know, always in German, French and Italian. But do prove me wrong if you can!
It is from a set of three air mail stamps issued in Czechoslovakia on 11 August 1920. Each value was issued for a specific route. This 28kc on 1000h was issued for flights from Prague to London. It came with a special air mail label with the route on. I would love to have a cover with those stamps plus labels on! If I get one, I'll show it to you! What I do have is a Swiss cover from the same period. It has the very first Swiss air mail stamp on.
This stamp was issued on 30 April 1919, and was issued for flights between Zürich, Bern and Lausanne. The covers from those period had a special air mail cancel on the back, because the stamps themselves were cancelled with an ordinary circular date cancel. I haven't scanned that cover yet, but I will show it to you soon, probably tomorrow.
It's an unaccepted design by Rösli from the 1933 Post Office competition for designs for a future definitive set. Although the write-up does not specifically mention that it is linked to the 1934 definitive set, the timing of the competition and the subject matter would let us safely conclude that it is. Apparently this was the first time the item was on the philatelic market. There was a second design but I'm afraid that had already been sold before I was notified.... Never mind, I'm as happy as a lark!
These definitives were overprinted for use of officials of the League of Nations. Nice!
Now I know that in 1955, some six months before the Landschaftsbilder stamps were invalidated, a new cancellation type was introduced with a large T. These are therefore quite rare on this definitive set. I suppose that the example shown here is the cancellation in use before that new version. The Stanley Gibbons catalogue mentions that from 1954 postage stamps were used in place of postage due stamps, but I have no further information at all. If anybody knows anything about this, I'd love to know.
This item is the left part of a sheet, out of which 2 columns of booklets could be made (hence the tête-bêche pairs, to make it clear where the sheet should be cut). The part that is missing is the second half of the unprinted label and three more stamps.

Isn't it amazing?! I found lots of others too, and now there's only three proving hard to find. I did finally find a postcard depicting Lake Seealp and Mt Säntis (40c stamp) just recently but that was from Poland and the write-up was so confusing (and mainly in Polish) that I did not go for that one. But at least I know there's one there so I'll find it eventually!
This cover is franked with 18c: 3c because it was bulk printed matter (50 items or more) and another 15c because it was a cash on delivery item (up to 5f).


As I said, both are classified as varieties in the Zumstein catalogue, but only type 2 has a premium. But if type 2 had been a damaged cylinder, then type 1 would not have been classified as a variety. So both varieties must have existed independently, which would perhaps point to two different cylinders being used? I don't have any information at all regarding cylinder numbers for this set so if anybody knows anything at all about this, please let me know!

