1757-1758 French Sèvres chamber pot at the Metropolitan Museum of Art, New York - Looking at the elongated oval shape of this piece, I think it was specifically a bourdaloue: a chamber pot designed to allow women to use them without disrobing or attempting to squat while in large and cumbersome dresses. These would be discreetly slipped underneath the skirt and held between the thighs when in use; if executed with grace, a woman could use one standing up.
Toilette Service, Manufacture de Sèvres, 1763, Soft-paste porcelain, painted and gilded, Vincennes & Sèvres toilet wares were used for the cosmetics and hair preparations during the ritual of the toilette. In the 18thC this was undertaken before courtiers, friends and tradesmen. This service (probably incomplete) comprises 2 powder boxes, 2 patch boxes, a small brush (vergette) for brushing away wig powder & a clothes brush. wallacecollection.org
Vase with Cover Sèvres Manufactory 1883–85 French (Sèvres) porcelain combining elements of rococo and neoclassical styles The vast and diverse production of the Sèvres factory in the nineteenth century resists easy characterization, and its history during this period reflects many of the changes affecting French society during this tumultuous century. (Sèvres Porcelain in the Nineteenth Century The Metropolitan Museum of Art)
1752-1753 French Mustard pot and stand at the Metropolitan Museum of Art, New York - Mustard was used as a condiment, particularly for meat, in the 18th century. It seemed to be prevalent in English and French cuisines, as much as these tend to be contrasted with each other in this time period.
Bourdaloue - chamber pot for ladies - 1750s. A necessary item when wearing hooped petticoats and layers. Women could use them standing up with the aid of their chambermaid. Note how the shape conforms to the female form. A good item to have also when away from home, travelling. Note this one has a lid!