TANZANIA Tanga, Usambara Mountains, Sisal farming and industry, D.D. Ruhinda & Company Ltd., Mkumbara Sisal estate, drying of sisal fibre in the sun / TANSANIA Tanga, Sisal Industrie, D.D. Ruhinda & Company Ltd., Mkumbara Sisal estate, Trocknen der Sisalfaser in der Sonne
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