8 torthaí laistigh de Duine Theodore William Achtermann

German Documentation Center for Art History - Marburg Picture Index

University Library Freiburg

German Documentation Center for Art History - Marburg Picture Index

Wilhelm Achtermann

Bibliotheca Hertziana, Max-Planck-Institut für Kunstgeschichte Rom. Fotothek

University Library Freiburg

German Documentation Center for Art History - Marburg Picture Index

German Documentation Center for Art History - Marburg Picture Index

Kupferstich-Kabinett