Sir Edward Lear.

Lear is probably best known for his 'Nonsense Poems', but he was also a very fine draughtsman and painter.

In the mid-60's I managed an Art Gallery in London's Devonshire Street, and amongst our small stock of Lear's drawings and watercolours were several plain pencil sketches, from the mid-1800's, such as the above.

In those days Lear's drawings fetched far more if coloured than in plain pencil or pen, and most of ours were sent down to a man in Dorking Surrey (Bob someone) who would add muted watercolour highlights to otherwise planer work. 

I remember thinking at the time that this was some sort of sacrilege, but my boss insisted.

I do wish I'd bought some of them, but I think the same about many of the works that passed through my hands. I should have thought about it at the time; too late now.

p.s. This same Bob in Dorking would 'paint out' Cows from Victorian landscapes for us; they just weren't fashionable. He was very good at it too.