Los-Nr. 782

25 c. ultramarine, block of 4 with sheet margin at left, nice fresh colour, rouletting slightly irregular at top, otherwise complete, unused with fresh original gum, the lower pair unmounted mint; fine and rare multiple, largest recorded unused block in this colour, certificate Böttger BPP Provenance: Isac Seligson (1982), 'Melusina' (2009)