Queen Victoria Keyplate Issues. THOUGHT TO BE A UNIQUE BLOCK 1882-86 Wmk CA 1/2pi emerald-green die I, mint og block of four, two vertical creases on right pair, slightly toned gum which affects the appearance, an extremely rare if not unique multiple of this shade (SG £20'000+) Provenance: Gilbert, "Tatiana" Expertise: Cert. BPA (1980) (Image)

AN IMPORTANT MINT MULTIPLE 1886 Wmk CA 1/2 on 1/2pi (fractions 8mm apart) emerald-green mint nh block of 4 (from columns 4-5 of the sheet), showing varieties "large 2 at right" on upper left stamp and "large 1 at left" on lower left stamp, folded vertical perfs (causing minor separation at centre), still a very fine block of the highest rarity (SG £9'100+) (Image)