US postal service 1904, steamer ST. LOUIS, picture postcard of the ship with 1 C and sea mail duplex 16.7.04 to red scum MA, USA, under-franked and postage due with Tax single circle postmark \"U. S. Sea P. O. / T 4\" and transit New York 29.7.04 \". Due 2 cents\", arrival red scum 29.7.04 on face