Columbia subject headings:
Archaeologists--Germany--Correspondence.
Archaeologists--Italy--Correspondence.
Deutsches Archäologisches Institut. Römische Abteilung--History--Sources.
Gerhard, Eduard, 1795-1867--Correspondence.
Henzen, Wilhelm, 1816-1887--Correspondence.
Harvard subject headings:
Archaeologists--Germany--Correspondence.
Archaeologists--Italy--Correspondence.
Deutsches Archäologisches Institut. Römische Abteilung--History--Sources.
Gerhard, Eduard, 1795-1867--Correspondence.
Henzen, Wilhelm, 1816-1887--Correspondence.
Princeton subject headings:
Archaeologists--Germany--Correspondence.
Deutsches Archäologisches Institut. Römische Abteilung--History.