Unused French postcard from the Caves des Grands Vins Monmousseau, Montrichard, Touraine. Captioned: "MONTRICHARD (Touraine). — Caves des Grands Vins MONMOUSSEAU / Une perspective dans les Galeries." Interior view looking down a long underground gallery tunnel carved from tuffeau limestone, with narrow-gauge rail tracks running to a vanishing point and floor-to-ceiling stacks of wine bottles in riddling racks (sur lattes) lining the right wall. A small transport wagon is visible at the far end. Atmospheric photograph capturing the scale of the Monmousseau cellars, which total 15 km of underground galleries. Founded in 1886 by Alcide Monmousseau; the house remains a leading producer of Touraine sparkling wines. Divided back, French format: "Correspondance / Adresse / N'écrire que sur le côté réservé à la correspondance." Unused — no stamp, postmark, or writing.