unused 1912-21 MCA 1c. to 10r. (with some additional shades) and 20r. purple and blue on blue plus 100r. and 500r. (small thin) overprinted "SPECIMEN", 1919 4c. on 6c. (2, one with bars omitted and one with surcharge double), and 1921-22 1c. to 5r. plus 50r. overprinted "SPECIMEN". Generally fresh and fine mint. Cat. £1992