South Africa - German East Africa. (Undercover Mail). 1942. Printed Matter envelope addressed to 'Box 117, Tanga, Tanganyika' bearing South Africa SG 88, 1/2d green tied by Kaapstad date stamp with framed 'Passed No 19/by Censor' cachet in violet. Scarce item of undercover mail into Tanganyika paying the Printed matter rate.