Entire dated St. Thomas 14. September 1855 to Caracas, Venezuela. Sent through and stamped with “FOREIGN LETTER OFFICE - ST. THOMAS” on reverse. Routing instruction “pr. Isabel”, Venezuelan receiving mark struck on front and charged “2” reales due by addressee. Merchants in St. Thomas maintained the office from 1846 to 1860. Mail was bagged and shipped by private packets to avoid high charges of inconvenient schedules.