Proofs ex the Archives. 1988. SACC 364. Marginal Gutter Control Block with Colour Bars. Only 9 such blocks can exist.
South West Africa. Proofs ex the Archives. 1988 7c Reprint (SACC 364) in a Marginal Gutter Control Block with Colour Bars. Very fine unmounted mint.
R1550
REF NW603A
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Proofs ex the Archives. 1988. SACC 364. Marginal Gutter Control Block with Colour Bars. Only 9 such blocks can exist.
