• 138241 1951 1D LIGHT ULTRAMARINE (SG504) MINT BLOCK OF 28 WITH 'KEYHOLE FLAW' (SPEC Q6d).

  • £475.00

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  • Description

    1951 1D LIGHT ULTRAMARINE (SG504) MINT BLOCK OF 28 WITH 'KEYHOLE FLAW' (SPEC Q6d). A fine unmounted o.g. right marginal block of 28 1951 1d light ultramarine (SG504) with stamp 6/12 showing the rare 'KEYHOLE FLAW' (Spec Q6d). Few such blocks are known. (Ref 138241).

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