Printed 'On His Majesty's Service' official envelope franked with 1929 1d black & carmine and 6d green & orange 'OFFICIAL / OFFISIEEL' overprint issue (SG O8/O9) tied by PRETORIA cds's dated 11 JUN 1930 with boxed 'PRETORIA' registration marking alongside and small oval 'ON POSTAL SERVICE' Official Arms cachet. Addressed to AUSTRIA.