Victoria, 1850-53, 3d blue + 2d gray lilac, 3d (position 2) with primary printing flaw at upper right, canceled by blue butterfly "3" handstamp on 1850 cover front to London, England, with top back flap bearing blue and black Melbourne, Port Phillip rimeless oval date stamps. SG No. 4a+6  Estimate $500 - 750. $0 (Image)