Griqualand West 1874 SG1 1d on 4d Manuscript, Rarity

1874 1d in red manuscript on 4d blue (SG 1). An unused full OG (hinged) example. Demonstrates the correct colour for this manuscript surcharge together with characteristic show-through of the pen stroke to reverse. An exceedingly rare stamp. Multiple signatures and expertising marks on reverse including Signed: Bloch. (cv£1800). See additional image below.