GB 1973 SGX849var Colour Trial for the Jumelle press
Stock Code: P15601906
1973 2p Harrison Colour Trial. Very fine unmounted o.g. imperforate colour trial pair printed in Turquoise-green, produced as a proof for the "Jumelle Press" in specially prepared sheetlets of four. Printed in an unissued colour for this set. Scarce.
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