SG 630b 1961 1/3d. green and blue. ‘Green omitted’. UNIQUE. SUM.

Great Britain  1961 Queen Elizabeth II Seventh C0mmonwealth Parliamentary Conference.  1/3d. green and blue.  South West corner example.  Variety, ‘GREEN OMITTED VIRTUALLY ENTIRELY’.  Superb unmounted mint condition.  Brandon Certificate No. 25,848 (2000).  THIS IS THE UNIQUE EXAMPLE OF THIS ERROR.  EXCEPTIONALLY RARE AND AN IMPORTANT PIECE OF QEII PHILATELY.