sheet (202x278mm.) bearing six perforated keyplate colour trials with blank name and duty plates in carmine, yellow-orange, grey-brown, green, ultramarine and grey, three perf. 12 1d. colour trials in crimson-lake, yellow-brown and sepia, plus six existing denominations and colours, the nine trials each with suggested denomination written alongside. A magnificent exhibition piece. Photo" /> Proof 1883 (25 Sept.)<I> "Turks Islands Postage Stamps, Existing and proposed Schemes of Colours"</I> sheet (202x278mm.) bearing six perforated keyplate colour trials with blank name and duty plates in carmine, yellow-orange, grey-brown, green, ultramarine and grey, three perf. 12 1d. colour trials in crimson-lake, yellow-brown and sepia, plus six existing denominations and colours, the nine trials each with suggested denomination written alongside. A magnificent exhibition piece. Photo | Christie's