GB 1958 SG573var Mint all over green phosphor, Wmk. sideways paper
Stock Code: P11205200
1958 2d Red brown (Very streaky printing) “Dollis Hill Phosphor Trial“. Very fine perforated block of four on gummed crowns watermarked (Sideways to right) paper, with all over green phosphor showing a strong phosphor reaction. Scarce. Spec. ST4(3)c.
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