"OKW/CHI" . "WNV/Chi" . "Oberkommando der Wehrmacht Chiffrierabteilung" . "OKW/ Chi" . "OKW/Chi" . . "OKW/''Chi''" . "Cipher Department of the High Command of the Wehrmacht" . . "cipher Department of the High Command of the Wehrmacht" . . "Chiffrierabteilung" . "Cipher Department of the High Command of the Wehrmacht" . "Rapid analytic machinery" . "OKW/Chi Machinery" . . . . . . "Reliable Reports" . . "OKW" .