It is possible that sheets exist with the narrow spaced lines of perforation on the left side. We have searched in vain for such varieties, but they may exist. A sheet inverted when placed on the left side of the machine would shew the top margin perforated through, and narrow spaced perforation to left; while a sheet inserted top first on the right hand side would leave the top margin blank and the bottom one perforated through, and the narrow spaced perforation to left. This comb generally perforates so evenly that there is no clashing of the perforations where the lines meet. Occasionally, however, a sheet may get off the straight and an irregular perforation occurs. The sheets perforated in this machine generally have one guide dot in the left margin, and three at the right (see sheets III.-VII., IX.-XI., XIV., XV.). [page 34] [Illustration: Comb perforation. Compare crossing of perforated lines with illustration on page 29.] The 1/2d. pale orange vermilion exists doubly perforated at the top and sides. A minor variety of the 2d. rose shews a small white spot 1/2mm. from the nose. The stamp is No. 6 on the sheet. The variety has been noted on several (not all) the sheets of this value, and in various blocks, pairs and singles. The left and right hand top stamps (1 and 5) of the 6d. value shew the sloping label, which is now very prominent (see plate X.). All the values shew variations in the marks on the back hair and in the curls. [page 37] CHAPTER V. Issue of 1886-87. In 1886 a number of the stamps began to appear on the paper watermarked Crown C.A., the initials of "Crown Agents." The colours were changed, and a new value inscribed "2 1/2 PENNY" on the value tablet was added. The values and colours are-- 1/2d. grey-green, myrtle-green (shades). 1d. carmine, rose-carmine, crimson. 2d. orange-yellow, orange, deep orange. 2 1/2d. pale ultramarine, deep ultramarine. 3d. grey, slate-grey, pearl-grey. 4d. brown, deep brown. 6d. olive-green, bronze-green, grey-green. 1s. violet, deep violet. All values exist with the embossing double; several with the embossing double, one of the impressions being inverted; part double and treble perforations; and the white and the yellow gum. The watermark Crown C.A. is uniformly sideways in this issue, the normal position being from right to left (Fig. F.), but it may be found inverted (Fig. G.). [page 38] [Illustration: Fig. F.] [Illustration: Fig. G.]