Canada, Registry, 1875, 5¢ dark green. In combination with 1872, 3¢ dull red, two singles, tied by grid of squares cancels on cover to Boston, Mass., purple "Answered" handstamp and registered no, "Island Pond, Vt. P.O., Feb 24, 1888, Register" entry and receiving backstamps, Very Fine. Scott No. F2+37  Estimate $200 - 250. $0 (Image)