1911 Harrison & Sons 1d aniline pink (F), mint nh, very fine example of this scarce shade printed by Harrison & Sons (SG Spec. M6(8), £1'250 in 2019) (Image)

1911 Harrison perf.14 2 1/2d bright blue in mint nh corner marginal block of six from the top left corner of the lower pane, very fine (SG £1'050+), incl. DLR 2 1/2d ultramarine top right corner marginal single for comparison (Image)

1911 Harrison 2 1/2d bright blue perf.14 with watermark inverted, mint og, very fine (SG £1'250) (Image)

1911 2 1/2d Bright Blue with INVERTED WATERMARK, mint og, very fine (SG Spec M17(2)a, £1'250 in 2019)
1911 21/2d Bright blue (Perf.14, Wmk. Inverted). Very fine and fresh unused o.g. example of this scarce watermark variety printed by Harrison & Sons. Spec. M17(2)a. (Image)