1900, 2s6d, green and ultramarin, opt "SPECIMEN", showing variety "Broken M2, pos 41 of setting, brillant large part o.g. One of only 13
1900, 2s6d, green and ultramarin, opt "SPECIMEN", showing variety "Broken M2, pos 41 of setting, brillant large part o.g. One of only 13 possible