. "12 letters"@en . . . "This material has been digitised. Readers should book a reading room terminal to access it."@en . . . . "Correspondence with Alferman, Armin"@en . . "Letters primarily about the transmittal of information to The Wiener Library."@en . "WL3000/9/1/57" . . . "Armin Alfermann was a German Photographer."@en .