Yap
Following Spain’s 1898 defeat in the Spanish-American War, it sold its remaining Pacific possessions, including the Carolines, to Germany.
Upon the arrival of the German administrators in 1899, Yap became the District Headquarters for western Karolinen.
A German post office was opened on Yap on 6 November 1899, and it remained open until Yap was occupied by Japanese forces on 7 October 1914. Due to disruptions in steamship service to the islands, the last known mail departing Yap was posted in August 1914.
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Yap Post Office, c. 1900
Postmark Information
Catalog:
- Friedemann 7
- ArGe Kolonien YAP KAROLINEN
Dates of Use:
-
6 November 1899 to August 1914
Notes:
- No year date until 14 January 1900
- Provisional year ‘01’ until 5 January 1901
- Blue, blueish-green ink, February 1903 to August 1903, 12 July 1906
- Violet ink, January 1904 to July 1904
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Yap
PO Information
Opened: 6 November 1899
Closed: 7 October 1914
Following Spain’s 1898 defeat in the Spanish-American War, it sold its remaining Pacific possessions, including the Carolines, to Germany.
Upon the arrival of the German administrators in 1899, Yap became the District Headquarters for western Karolinen.
A German post office was opened on Yap on 6 November 1899, and it remained open until Yap was occupied by Japanese forces on 7 October 1914. Due to disruptions in steamship service to the islands, the last known mail departing Yap was posted in August 1914.

Postmark Information
Catalog:
- Friedemann 7
- ArGe Kolonien YAP KAROLINEN
Dates of Use:
-
6 November 1899 to August 1914
Notes:
- No year date until 14 January 1900
- Provisional year ‘01’ until 5 January 1901
- Blue, blueish-green ink, February 1903 to August 1903, 12 July 1906
- Violet ink, January 1904 to July 1904
Album Page(s)