10c carmine red, 30c black & deep ultramarine and 50c reddish purple QE2 issue with 'OFFICIAL' overprint in black tied on piece by ARUSHA cds's dated 21 JUL 1959. (SG O2 & O5/O6)
10c carmine red, 30c black & deep ultramarine and 50c reddish purple QE2 issue with 'OFFICIAL' overprint in black tied on piece by ARUSHA cds's dated 21 JUL 1959. (SG O2 & O5/O6)