cover 1851 laid paper, 3d. red with four margins (small tear at foot) tied to 1852 (Jan.) E. (stained filing crease clear of ahesive) from Monteal to Quebec, with clear despatch c.d.s. on face, and 6d. slate-violet with four margins tied to 1851 (June) cross- border E.L. (filing crease crossing adhesive) from Montreal to New York.