ASCENSION SGZ39 1912 GB ½d GREEN BLOCK OF 12 USED WITH ASCENSION B/11 AU/13 CDS CANCELS. A FINE USED BLOCK OF 12 STAMPS ON PIECE. The item "ASCENSION SGZ39 1912 GB ½d GREEN BLOCK OF 12 USED ON PIECE ASCENSION B/11 AU/13" is in sale since Monday, September 17, 2018.This item is in the category "Stamps\British Colonies & Territories\Ascension Island". The seller is "northstaffsstamps" and is located in Staffordshire. This item can be shipped worldwide.