Lot 60923 – 1864, 8c green, a phenomenal horizontal block of six unused

1864, 8c deep green, a phenomenal horizontal block of six from the base of the sheet, types 5-6-7 repeated vertically, very attractive and unusual deep colour, well margined, unused without gum; faint aging, vertical slight crease between stamps and small thin spot in centre at top; blocks of this stamp in this distinct dark shade are exceedingly scarce -as a matter of fact, the extraordinary Lee and Scott collections had not multiples larger than a block of four-; ex Bustamante.