Photo credit: Llyfrgell Genedlaethol Cymru / The National Library of Wales
The painting is signed 'JS’ bottom right. Could the artist be a member of the Sartorius family of sporting painters? The picture, however, is not of the quality which one should expect.
Art UK has added: 'The painting is dated '1850s’ on Art UK, and '185–?' on the Collection's own website. The painting has a clear '54’ in the bottom left hand corner of the painting.'
This is a longshot: the only recording I have of those initials in that form is John Sanders (not John Sanders (painter) in Wikipedia). The John Sanders I have the initials for is not him as mine painted a view of Liverpool Docks in 1897 - perhaps worth trying to find him, but if you are convinced it is earlier, then this is of no use to you.
Could the painting be 100 years earlier --James Seymour ????
1854 as a date would not be inconsistent with the style. The background is very sketchy and, even taking that into account, not very sophisticated, so I am not optimistic we will find a professional sporting artist to fit the date.
This painting has the same problem as for example Gilbert Stuart's Skater. The legs receede to getting smaller towards the hoof.An optical effect,which also makes me think of 18th century techniques.
Here is a painting from the 1850s from the same donation. This is G/E19 and the mystery painting is G/E22. It looks like the same horse. Also, the title is similar.
“Portrait of a Hunter in a Landscape
Llyfrgell Genedlaethol Cymru / The National Library of Wales”