1899, Poseidon's Trident, without Stars at sides, 1m blue, imperforated left sheet margin horizontal pair with additional impression of 2m blue on reverse, no gum as produced, VF and scarce, expertized by Cosmopoulos

300.00

1899, Poseidon's Trident with Stars at sides, set of six sheet margin imperforated copies, five of which with additional reversal impression, no gum as issued, NH, VF and scarce assembly, expertized by V. Spanos
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600.00

1899, Poseidon's Trident with Stars at sides, 1gr lilac, block of four imperforated vertically between stamps, full OG, NH or LH (top pair), VF

200.00