cover 3d. deep blue and 6d. yellow-green, both with small to good margins, clearly tied on 1857 (7 July) E. registered from Pictou to "Post Office Keeper, Plaister Cove, Strait of Causo", marked "If not there then person in charge of the office" and showing, on reverse, despatch and Antigonish c.d.s.; the entire with small tear at top of face panel. An attractive example of the nine pence local registered rate. Photo