Getting the porter to sneak you in to see how the other half lives while they are away for the summer. Photographs by Charles Joseph Antoine Lansiaux shot in around 1918. Collections of the Musée Carnavalet, Paris.

Salon with the silken bag keeping the dust off the chandelier. 28 rue Saint-Dominique. Hôtel de La Tour d’Auvergne. du salon. 7ème arrondissement, Paris. June 1, 1918 photograph. Inventory Number PH27191. French. Charles Joseph Antoine Lansiaux, photographer (1855-1939). Photographer’s stamp. Collections of and image Musée Carnavalet, Paris. The photograph itself is in the public domain due to age. https://www.parismuseescollections.paris.fr/fr/musee-carnavalet/oeuvres/28-rue-saint-dominique-hotel-de-la-tour-d-auvergne-detail-de-porte-du-salon#infos-principales

Départ d’escalier. 18 rue du Cherche-Midi, 6ème arrondissement, Paris. September 10, 1917 photograph. Inventory Number PH24875. French. Charles Joseph Antoine Lansiaux, photographer (1855-1939). Photographer’s stamp. Collections of and image Musée Carnavalet, Paris. The photograph itself is in the public domain due to age. https://www.parismuseescollections.paris.fr/fr/musee-carnavalet/oeuvres/18-rue-du-cherche-midi-depart-d-escalier-6eme-arrondissement-paris-10#infos-secondaires-detail
Cabinet de la directrice, intérieur du lycée Fénelon, 2, rue de l’Eperon, 6ème arrondissement, Paris. May 26, 1921 image. Inventory Number PH26874. French. Charles Joseph Antoine Lansiaux, photographer (1855-1939). Photographer’s stamp. Collections of and image Musée Carnavalet, Paris. The photograph itself is in the public domain due to age. https://www.parismuseescollections.paris.fr/fr/musee-carnavalet/oeuvres/interieur-du-lycee-fenelon-cabinet-de-la-directrice-2-rue-de-l-eperon-0#infos-secondaires-detail