1904, 10¢ Louisiana Purchase, in combination with 1904, 3¢ Louisiana Purchase on registered cover to Helsingfor, Finland, tied by "Dansville, N.Y., Sep 14, 1904" duplex postmarks, N.Y. etiquette, returned to N.Y. with dead letter office markings, Extremely Fine, a lovely and scarce usage to Finland. Scott No. 327+325  Estimate $150 - 200. $0 (Image)