WIA GC/11044 | Warburg, Aby to Avenarius, Ferdinand 29/05/1909 | on the murals painted by Hugo Vogel in the townhall in Hamburg; as Avenarius had written an... |
WIA GC/11046 | Warburg, Aby to Warburg, Max 02/06/1909 | on the H. Vogel affair; no reply yet from [Ferdinand] Avenarius; encloses two articles by Max... |
WIA GC/11051 | Warburg, Aby to Avenarius, Ferdinand 15/06/1909 | thanks him for a letter and the issue of 'Kunstwart' with the article on Hugo Vogel's Merseburg... |
WIA GC/27917 | Avenarius, Ferdinand to Warburg, Aby 09/06/1909 | refers to the painting by Hugo Vogel representing the history of Merseburg; an article has been... |