Rhodesia One Shilling Black and Pale Turquoise-blue part gum

Rhodesia 1910-13 Double Head Issue Perforated 14 One Shilling Black and Pale Turquoise-blue Mid Gash 2. Position 8 showing Upper printers mark in SW corner.. Ex Spink 2011 Pollitt lot 681 also Ex Underwood 2012 and Ex Mike Rolfe. (The RSC number is from the detailed listings which are available free of charge on the website. Ebay wont let me give a link but just search for the rhodesianstudycircle.)