These sketches were originally part of a larger collection, which was split up in 1963 after being sold at Christie's. The records still exist for this work as can be seen on the correspondence I recently had with the current directors of the Thomas and Agnew, the art gallery which sold the work back in '63.
A J Stark was/is a renowned artist, who had a great talent for painting horses. Between 1848 and 1887 he exhibited thirty-six pictures at the Royal Academy, thirty-three at the British Institution, fifty-one at the Society of British Artists, three at the Institute of Painters in Water Colours, and fifty-seven at other galleries.
A wonderful piece of history