LUXEMBOURG, 1852-59, 10c Intense Black (1b; Michel 1a; Prifix 1a).
“L” shaped block of three, being a most uncommon format of franking on a slightly larger sized but most attractive cover to Belgium,
the “block” has very large margins to just barely touching frameline, deep luxuriant color and impressions, tied by three light strikes of distinctive three-ring cancel with a dot in the center, matching “Clervaux 29 XII 1852” double circle Belgian type circular datestamp, multiple transit and arrival markings on reverse both in red and black, Very Fine and choice, in addition to being a most unusual franking, this cover also represents and extremely early usage of the Greenish Black printings, ex Del Puente, with 1969 F.D.S.P.L. and 2014 Bottger certificates
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