"La Toilette intime" or "Une Femme qui pisse", by François Boucher, 1760s. She is using a Bourdaloue - chamber pot for ladies - a necessary item when wearing panniers and layers of petticoats. Here is more on the subject from the fab twonerdyhistorygirls site: http://twonerdyhistorygirls.blogspot.co.nz/2010/06/useful-necessary-bourdaloue.html
Occupation: Workers at the Tredegar Ironworks. Women were forbidden to go down the mines but could be employed in heavy industry on the pit face. Tinted photo. Note jewelry, sleeve detail, but heavily used aprons. by W Clayton of Tredegar, Wales, 1865.