Geneva express letter (special delivery?) from 1903 to Dr Guyot in Eaux Vives. 10 centimes postage due, most emphatically. Double rate for postage due, or for express service? Dr. Guyot could not have been pleased. No doubt he added that to his bill.

5 March 1901

Postcard from Luzern [razor cancel] to German soldier stationed in China during Boxer Rebellion.
This card transited Hong Kong, 3 April, and Shanghai, 6 April, on its way to Tientsin. It was then forwarded to Tongku received 14 May.

Here is a cancel I got recently, tickled my fancy: the famous UPU commemorative with the allegorical Mademoiselle UPU throwing mail from heaven, and looking desperate for a square meal. Z78B 12.9.1900. There's gotta be a story there.

28 February

Well, I don't have any really decent 28 February items, so thought this a suitable substitution.

29 February 1904
A postcard was mailed at the Bendlikon-Kilchberg post office, destination Trogen, Appenzell.
This at first appears to be an ambulant cancel, but it's not. These two communities have been associated with each other for centuries - from Wikipedia - "Kilchberg is first mentioned in 1248 as Hilchberch. In 1250 it was mentioned as Kilchperch.[3] It grew out of the mediaeval village of Bendlikon (first mentioned in 1250 as Benklinkon) where Kilchberg was just a section of the village."

This device was part of the first set of cancelers made by Güller to confirm that his design could be mass produced. This device was issued 20 October 1903.