1 Oct 1871 to 31 Jun 1875, North German Union Agreement

Direct steamer to Germany
Amount due for unpaid letters: 72 öre
Part payment credited at 4 öre per cent.
Postage due paid in cash befrore 1 Jan 1874, then by postage due stamps.

Double rate letter with 10 cent. Correct rate 20 c. Amount due 72 öre per rate; 144 öre. 4 öre credited per cent prepaid. Net amount due 104 öre. Paid in cash. By error a due rate of 42 öre instead of 72 öre was published 1 Jan 1872 to 4 Feb 1872
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Litterature: United States - Sweden: Letter mail Prior to the Bilateral Postal Convention of 1873, Richard F. Winter(Tucson, AZ 2001) (Part of the Nordia 2001 Symposium papers.)