Page 228 - Jarvis & Wright: Jamaica Display to RPSL
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Jamaica: The Nyasaland Key Plate Stamps: George V, 1912 - 1927.
George V 1s Value.
Two panes of 60 arranged in 120 set sheets. Issued on 2 August 1912.
6 printings invoiced between 15 January 1913 and 17 April 1919, 193,800 stamps.
1912 – black on green. 1915 – black on white paper coated green.
1916 & 1917 black on light green. 1918 – on blue - green, olive back.