cover -- 10c. (red) and 25c. (black) affixed to 1891 (5 Nov.) part entire registered to "Ile aux Chiens"; light overall toning, rare inter-Island usage; 25c. (2) individually affixed on 1892 and 1893 envelopes to Nova Scotia and U.S.A. respectively. Also 1889 and 1890 envelopes to Halifax, each bearing "Dubois" 25c. black on rose