1863 MOURNING ENVELOPE MAIDENHEAD TO MAURITIUS. Fine mourning envelope Maidenhead to Mauritius via Southampton with a very fine 6d deep lilac (SG83) lettered CD, tied neat MAIDENHEAD/492 duplex DE 19 63, on front very fine strike '4½d' accountancy hand stamp in red. On reverse MAURITIUS date stamp FE 28 64. Stamp paying the 6d ½ oz rate via Southampton. (Ref 117821).