cover AA-BC, an irregular block of seven, the 'violet-blue' shade on thicker lavender tinted paper, used together with 1d. plate 126, OF, also on lavender tinted paper, on 1852 (8 May) entire letter to New York, cancelled by fine strikes of the black "466" numeral of Liverpool, the address panel showing handstruck "5/CENTS" and "PAID" in red, manuscript "pr Africa Str."; the entire refolded, the block just touched or clipped at places and two stamps creased but not detracting from this most attractive, and almost certainly unique, item. R.P.S. Certificate (1985). Photo