cover 5c blue, 10c vermilion (10,12), tied by oval grid to May 1867 cover from Windsor, N.S., endorsed "By Steamer from New York", to San Francisco; 10c has very small corner crease, otherwise fine; 15c rate to California via Panama in closed mail sack, Hiram H. Scott correspondence, ex Robertson

Details
cover 5c blue, 10c vermilion (10,12), tied by oval grid to May 1867 cover from Windsor, N.S., endorsed "By Steamer from New York", to San Francisco; 10c has very small corner crease, otherwise fine; 15c rate to California via Panama in closed mail sack, Hiram H. Scott correspondence, ex Robertson