Postcard showing a swimming pool on Port d'Austerlitz (Quai d'Austerlitz, Paris XIIIe arrondissement), the <a href="https://en.wikipedia.org/wiki/Viaduc_d%27Austerlitz" class="extiw" title="en:Viaduc d'Austerlitz">Viaduc d'Austerlitz</a> (1903-1904) and the factories on Quai de la Rapée (Paris, XIIe arrondissement).
uknown. very old
antique postcard