18 architectural plans of Parisian mansions printed from the drawings of the architect Legrand. The plans show the interior layout, layout and facades.
- 10 plans for Mademoiselle De Marsy's Hotel (1905) Marie-Louise Marsy, real name Anne-Marie-Louise-Joséphine Mars (1866-1942), member of the Comédie Française which she left in 1902 after becoming Mme de Vassart d'Hozier. Hotel located at the intersection of Boulevard Jules Sandeau and Rue Octave Feuillet in the 16th arrondissement. The current facades at this address do not correspond to the architect's plans.
- 8 plans for the Hotel de Mme Riensch de Osa (1894).
Augusta de Osa (1855-1944), née Riensch, was born into a wealthy industrial family in Hamburg. The diplomatic position of her husband allowed Augusta to lead a brilliant social life by frequenting the Parisian high society of the Belle Epoque. Each plan is countersigned by Mme Riensch de Osa with the mention Read and approved. Hotel still visible at the current 35, avenue Georges V (current boutique which adjoins the Prince de Galles hotel).