The Italian seamstress, Eugen von Blaas; oil on canvas; roughly 16 x 12 in. (50 x 32 cm). Link is to page on Wikimedia Commons from which there is link to a large image. The image was originally sourced from a Bonham’s past auction, so I assume the painting is now in a private collection.
Eugen (Eugene) von Blaas was an Italian painter active in the late 19th and early 20th centuries. His painting of a seamstress working looks smoothly refined at first glance, but on closer inspection reveals itself to be nicely painterly.