Unused on cover / entire letter 1880 (8 Mar.) envelope to New Haven, Conn., bearing 1863-77 perf. 14 4d. rose lightly cancelled with cork obliterator and tied by superb "A05" obliterator, additionally bearing U.S. 3c. brown Postage Due (slightly overlapping edge) with "circle" cancellation and showing "Due 3 Cts." h.s. alongside Frenandina transit c.d.s. for 10 March. A rare and most attractive franking. Photo

Details
Unused on cover / entire letter 1880 (8 Mar.) envelope to New Haven, Conn., bearing 1863-77 perf. 14 4d. rose lightly cancelled with cork obliterator and tied by superb "A05" obliterator, additionally bearing U.S. 3c. brown Postage Due (slightly overlapping edge) with "circle" cancellation and showing "Due 3 Cts." h.s. alongside Frenandina transit c.d.s. for 10 March. A rare and most attractive franking. Photo