Corinphila Auction 291-297 Day 2

Single Watermark 1915: Sideface ½ d. emerald-green, Electro 4, wmk. Crown over A, comb perf. 14, an unused block of forty-eight (6 x 8), from upper left corner of the sheet with interpanneau margin intact at right showing screwhead alongside fifth row, variety "Watermark Inverted", of lovely fresh colour and showing varieties (BW types: d, e, f, g, h, i, j an k) within the block; full unmounted og. A gorgeous large multiple of some rarity BW 63(4)d-k = $ 1'400+.