cover REGISTERED ENVELOPES: 1894 2d. (9, two overprinted "SPECIMEN" and two used), 1902 2d. (3, one overprinted "SPECIMEN" and one used), 1912 2d. (11, two overprinted "SPECIMEN" and three used), 1929 2d. (5, one overprinted "SPECIMEN" and one used), 1938 2d. (12, one overprinted "SPECIMEN" and six used) and 4d., 1953 4d. (7, two used) and 6d., and five later. Mostly fine