Cattle watering signed lower left ‘A J v Prooijen’ oil on panel 15 x 32cm Footnote: Provenance: Christie’s, London, 14th February 1991, lot 70, where acquired by the late husband of the present owner The present composition appears to be a preparatory study for a painting of 'Watering cows', sold as one of a pair at Christie’s, Amsterdam, on 26th February 2008, lot 102, for 3000 euros.