WIA GC/14486 | Meyer, Richard; Pauly, Carl August; Umlauf, [Karl]; Brinckmann, Maria; Hansen, Sophus; Pauli... | refer to the plan of 1914 for a purpose-built art exhibition building in Hamburg; although the... |
WIA GC/543 | Hansen, Sophus to Warburg, Aby 28/12/1901 | Warburg purchased a painting by him and Hansen comments on Warburg's wish to have it varnished |