unused Block of Four 3c-12c 1916-17 Issue (464-466, 468-474), blocks of four, the 3c, 4c and 12c are never hinged, B. stamps of 7c, 8c, 9c and 11c never hinged, few natural gum skips and bends or natural inclusions, all are fresh and fine-very fine, Scott retail $2,850.00 as blocks of fourest.