1890 ½d. to 5/- overprinted "SPECIMEN", ½d. to 5/- mint with additional 2½d., 4d. (5 including a block of four), 6d., 7d., 1/- (2) and 5/- (average), and ½d. to 7d. used with "A91" obliterators, fine. S.G. 1-8, £525

Details
1890 ½d. to 5/- overprinted "SPECIMEN", ½d. to 5/- mint with additional 2½d., 4d. (5 including a block of four), 6d., 7d., 1/- (2) and 5/- (average), and ½d. to 7d. used with "A91" obliterators, fine. S.G. 1-8, £525