British Empire - Day 6

1854 1a deep red die II and 1855 4a black on glazed paper, cancelled by diamond numeral 76, on letter to Dalkeith, Scotland, with boxed Dalkeith receiver on back 22 Feb 1859, a scarce mixed franking of imperforate lithograph and perforate De la Rue issues; one stamp probably missing from the envelope which has some minor wrinkling and age toning.