GB 1924 SGD18var Postage Due colour trial
Stock Code: G1564804
1924 2s6d Postage due colour/paper trials (4th series - 21st Jan 1924). A superb imperforate irregular block of three printed in purple on gummed, wove unwatermarked tinted paper mounted on brown card numbered "SD6" and annotated with the official colour description "No.7/Purple". A series of 24 different colour trials were produced at Somerset House from aspecially made Royal Mint plate of four impressions of the ½d die, this is from the fourth series of six in purple on different yellow tinted papers. In the place of the missing 4th stamp can be seen a manuscript annotation "To HM" (His Majesty) and now resides in the Royal Philatelic Collection. A spectacular and unique piece.
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