Letter from St. Thomas 27 April 1873 to Paris, France. British 4d plate 12 and 3d plate 9 cancelled with duplex 'C51 ST-THOMAS / A AP27 73 PAID' alongside red 1-ring 'LONDON M / PAID / F 4 MY73'. From St. Thomas with RMSPC steamer 'ELBE' 28 April and arriving Plymouth 14 MAY 1872. Rate 7d to France from July 1875 - 31.12.1875. One round corner on 4d stamp.