Auction Series 257-264 in Zurich Day 3

Ruanda-Urundi 1942: Waterlow Pictorial Issue, Proof blocks of four of the 5 c. red, 10 c. olive, 20 c. blue and 30 c. pale blue, all in marginal or corner marginal Imperforate blocks of four from the file sheets for checking for flaws in the printing, all with security punch-holes, the 5 c. and 20 c. with printing flaws circled in ink manuscript, some typical wrinkles, some adherence large part or unmounted og., fine and scarce.
Catalogue 257: EUROPE & OVERSEAS