Hello.
The postmark raise the cote of this Allied american-british occupation of Germany stamp.
But it is genuine or fake?
The caracteristics are: outer circle=28,5mm ; inner circle=18,5mm ;distance between the two lines=8mm ;...AMBURG1 (HAMBURG??)and date: 46.-9.
I still have some stamps in the same series with clean postmark but whose quota increase would not justify the application of a favour cancel.
Applying of a favour cancel decreases catalogue quote?
The Hamburg postmark has probably shown a "postcode" (the number of the delivery region, rather) in front of the place name, i.e. (24) HAMBURG 1, hence the asymmetry. See also the Oberhausen cancel on the letter shown above.
The last four postmarks look fairly normal to me, only the Braunschweig one *might* be a favor cancel, but again, bullseye cancels are not uncommon.
