Portret van een onbekende vrouw die omhoog kijkt c. 1890 - 1900

This is an advertisement for photography equipment, likely from a magazine, featuring a portrait of a woman with a pensive expression, taken by Charles Louis Klary around the turn of the 20th century. The image is a small, intimate one, measuring only 37mm by 37mm. The woman is rendered in a simple, realistic style, typical of the period. The advertisement also features illustrations of various photographic tools, such as a "ball nozzle water brush" and a "portable darkroom stand".