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1878 SAN SALVADOR to PARIS, FRANCE Postmarked April 24. Registered and rated 24 Reales. Franked with 4 Reales Type I "CONTRA SELLO" (strip of 3, a pair and a single). Via PANAMA, May 6. Charged 17/8d at British Consular Office, paid using GB adhesives tied with "C65" barrel killers. Received LONDON, May 26 and PARIS, May 29. THE LARGEST RECORDED USAGE OF 4 REALES "CONTRA SELLO" ISSUE THE ONLY RECORDED REGISTERED COVER FOR THE ISSUE THE ONLY RECORDED DOUBLE HANDSTAMPED ERROR ON COVER (Position 6) |
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