1913, without prepaid postage freight card - provisionally as letter card used, mounted is the bridge date cancel "OKAHANDJA 8.5.13" as well a single circuit segment cancel "OKASISE 8 5 13", detailed photo expertize Jäschke-Lantelme BPP (2009) : "the Freight respectively letter card is centered horizontal severed and shows in the margin slight traces as well left above a defect, otherwise however no defects, unrepaired. Letter cards served as accompanying documentation the proof of the respective content the between the postal service institutes manufactured letter card exchance and come by German Southwest Africa (from 1913) once in a while before. Provisional uses from freight cards or cards for Value shipments as letter cards are however clearly rare, the restrictions of the existing piece with E. Still tolerable. "