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                                    Official Mail
                            
                            cover 1870 (14 May) envelope, with contents, addressed to "The Acting Colonial Secretary" at Cedros, Marked "O.H.M.S." at top and "Harry Hughes, Warden" at lower left, showing "21" obliterator (Type 4) with, on reverse, fine "21" c.d.s. Photo
                            
                            
                            Details
                                        
                                            cover 1870 (14 May) envelope, with contents, addressed to "The Acting Colonial Secretary" at Cedros, Marked "O.H.M.S." at top and "Harry Hughes, Warden" at lower left, showing "21" obliterator (Type 4) with, on reverse, fine "21" c.d.s. Photo