United States. (Transatlantic Mail). 1845. Folded letter addressed to Amsterdam written from New York dated '15th Dec 1845', endorsed 'per "Cambria" with circular 'New York/ 5 PAID' date stamp 'Dec 15' in red, rated manuscript '5' (U.S. inland postage), routed via London with transit '29 Dec 45' on reverse and Dutch entry cachet 'Engeland/ over Rotterdam' in red on reverse 'Van der Linden 1025), Amsterdam arrival '2/1' on reverse with manuscript '1/8' debit to Holland and manuscript '120' Dutch cents due rating.
The "Cambria" was a Cunard Line steamer sailing from New York via Halifax to Liverpool.