United States. (Germany). 1837. Stamp-less envelope written from New York dated '23rd Feb 1837' cancelled by New York date stamp, endorsed 'By First British Steamer/ By Prussian Closed Mail' and routed via Boston with 'Boston/ Br Pkt' dated 'Feb 24', with hand-struck '23' and bold small '30' applied in black on face, double ring Aachen transit '10/3' in red on reverse and rated '13' in m/s blue ink.
Very attractive item of Trans-Atlantic mail.