Natal 1900 Rare Mexican Wreck Salvaged Letter

1900 WRECK OF THE "MEXICAN": Envelope from Estcourt, Natal (lovely clear cds MR 26 00) to England franked single QV 1d (SG 66). Cover bears a strike in red of the two-line "RECOVERED FROM WRECK OF MEXICAN" cachet. Of the salvaged mails most emanated from the Cape and accordingly covers with non-Cape adhesives are infrequently encountered. Some water staining as expected, roughly opened on reverse. Superior appearance for these. Rare.