Great Britain 1958 2d light red brown "Dollis Hill Phosphor Trial", SG573var

Great Britain 1958 2d light red brown "Dollis Hill Phosphor Trial", SG573var.

A very fine perforated horizontal strip of three on gummed crowns watermarked (Sideways to right) paper, with an all over green phosphor showing a strong phosphor reaction.

A scarce multiple.

GB Specialised Catalogue No: ST5(3)d.

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