Zanzibar 1895 QV 3r Block incl Daun's Capital Z & Thin Top Z

1895-96 QV 3r brown & green THIN TOP TO Z & "DAUN'S CAPITAL Z" (SG 20var). Superb M/UM block of four, all stamps with normal second "Z". Top left stamp distinctive "Thin top stroke to capital Z". The Daun's Z variety on the bottom right stamp. Suggested plating from Settings 2 & 3 positions r2-3/2-3 by reference to 3r's in Griffith-Jones collection. Fresh & attractive block. A very rare multiple thus. See additional image.