Virgin Is SG79bw/c 3d Purple/buff-yellow Wmk INVERTED Block of 60 inc Short Opt

Virgin Is SG79bw and SG79c 3d Purple/buff-yellow with Watermark INVERTED Block of 60 (Which is a complete pane without the margins) Stamp 8/1 has the A flaw and Stamp 10/1 is the short Overprint (showing this is the right pane). A few split perfs but U/M inc Short Opt. Cat 783+++ pounds. Ex Charles Freeland Collection