cover ENVELOPES: 1881 4d. (2), 1891 2½d. in red on 4d. (3, one used) and with original value blocked out (2), 2½d. in black on 4d. (4, two with six bars and two with eight bars), 1892 2½d. (14, two overprinted "SPECIMEN" and eight used), 1901 1d. (10, one overprinted "SPECIMEN" and three used) and 1902 2½d. (8, one overprinted "SPECIMEN" and four used). A fine lot