1877-1901, the valuable and remarkable study originally formed by L.E. Dawson, including a detailed study of the flaws on the various Stones, with an impressive selection of large blocks and complete sheets, also perforation varieties, a small study of the cancellations and covers (7) with 1877 rouletted ¼a. grey-blue "A" stone block (7x10), ¼a. ultramarine "B" Stone block (10x10), 1a. brown "A" Stone four sheets (15x10) in different shades also four covers, two bearing ¼a. (2) + 1a. (2), the other two bearing 1a. (2) + perf. 12 ¼a. slate (2), 1899 Redrawn, perf. 12 ¼a. slate-blue sheet (6x10), imperf. between pairs (4) horizontal unused (2) and used and vertical used and covers (3) one on East India ¼a. card and 1901 narrower margins ¼a. green two sheets (7x10) also imperf. between pairs (3) vertical unused (2) and horizontal used. Mostly good to fine, a few pieces affected by light climatic toning