Lot 264, Canada 1870s eight cent dull blue Registered, mint hinged VF block of six July 24, 2020February 23, 2016 by Sparks Auctions Lot 264 Canada #F3 1870s-80s 8c dull blue Registration, mint block of six, with full original dull gum, hinged. A fresh block, with each stamp being well centered, very fine and quite desirable. Unitrade CV C$3,600.