Laura Theresa Alma-Tadema and The Persistent Reader

'The Persistent Reader' (no date found) by Laura Theresa Alma-Tadema; Sotheby's or Private Collection?

Today's painter is unknown to me although the name Alma-Tadema is familiar of course. Apparently, Laura Theresa Alma-Tadema, born on 17 April 1852 (see also here), was the second wife of the Dutch painter Lawrence Alma-Tadema, and a talented painter herself. She began her studies with Lawrence Alma-Tadema in 1870 and became his wife a year later. Her paintings are domestic scenes of everyday life and show that she was strongly influenced by 17th-century Dutch art. Today's painting is a depiction of a well dressed couple seen indoors. The woman is ready to go for a romantic walk, hat in hand, and shows signs of impatience. The man is the persistent reader, not ready yet to give up his reading. The light in this painting is very reminiscent of Johannes Vermeer. Laura would sign her paintings with L. Alma-Tadema and sometimes they would be confused with those of her husband. I like paintings that tell a story and this one makes me smile. I can't find the location of the painting, although it was at one point at Sotheby's.