I have many more of them, and, if someone here is interesting to see them, I will be glad to add more scans over the weekend...
the first (right side9 one is U35, I think... a nice, old embossed cover... undervalued by Scott (in compare to, for example, some envelopes on the left side of this scan).
the 2nd one is an usual wrapper, but looks that it has been sent to the famous Carl Gustav Jung.
the 3rd one just make me sad, because I didn't find any chinese stamps in it :( funny ... the embossed stamp also have some kind of tear on it... a minor error in the printing process, I suppose...
