Printed formular registration envelope franked with 1961 pair 30c black, emerald & yellow and 1/- 30c red, yellow, black, brown & blue QE2 issues (SG 112 & 115) tied by MWADUI MINE TANGANYIKA cds's dated 2 AUG 1962 with additional strike on reverse and printed blue & white registration label with 'MWADUI MINE' handstamp on front. Addressed to UK with SHINYANGA transit cds and oval REGISTERED MWANZA transit marking both on front. A scarce origination.