Lot no. 6639

Letter postmarked Stockholm October 4th 1853, sent via Prussia to the east coast of USA and then to San Francisco. The Prussian Closed Mail (PCM) Convention of 1852 made it possible to send closed mail between Prussia and USA. A circular ofFfebruary 14th 1853 opened up the possibility for a letter exchange between Sweden and USA. From Sweden the postage was 54 Skilling Banco. This letter is the earliest recorded PCM letter sent from Sweden to San Fransisco.