This exquisite portrait of Geertruida Hasselaer (1624-1696) has been signed in Jacob Backer's customary manner with the monogram JAB. Both the painter and the provenance of this work are beyond doubt.
The artist uses a sparkling colourism in which primary colours are given free rein. Using broad vigorous brushstrokes and a thick impasto Backer has beautifully captured the lustre and texture of the glowing material.