Möbel, Raumkunst. – Ludw. Caspar (Hrsg.).
Furniture, Interior Art. - Ludw. Caspar (ed.). Interior architecture & decoration of modern times after executed works. Ffm., Keller, 1888. fol. 22 (of 25) collotype plates as well as 16 lith. plates with construction and detail drawing. Ohlwd. portfolio.
Not in the catalogues "Vorlagenwerke" of Art Library Berlin and University Eichstätt. Schneider-Henn, Ornament, 132: "Interior design, ensembles, room details and individual furniture of German workshops."
