Great Britain 1958 Queen Elizabeth II 2d red brown "Dollis Hill Phosphor Trial". SG573var

Great Britain Queen Elizabeth II 1958 2d red brown "Dollis Hill Phosphor Trial", SG573var. A very fine perforated horizontal pair on ungummed unwatermarked specially prepared hand made paper, with all over green phosphor showing a strong phosphor reaction. A scarce piece. GB Specialised Catalogue No: ST4(3)a.

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