The fact of a picture of fabulous value being picked up in a pawnbroker's shop, or veritable gems being discovered fastened with tin-tacks to the wall of a servant's bedroom, is alone sufficient cause to rank them among pictures with a history. But surely no such remarkable instance of innocence regarding the real value of a work has been known for a long time as that which came to light in a West End picture dealer's shop a few weeks ago. The story is a simple one. A painter--presumably an amateur--ran short of canvas, and, living in the country, some days must needs elapse before he could get a fresh supply. Hanging up in his house was an old work, representing an ancient-looking gentleman. He had hung there a long time, practically unnoticed. To meet the emergency, the painter conceived a happy thought, and one which he immediately proceeded to carry into effect. Why not paint on the back of the ancient-looking gentleman who had hung uncared-for for so long? The canvas was taken off the stretcher, turned round, and re-stretched, the back of the picture being used on which to paint a copy of Sir Joshua Reynolds' "Age of Innocence." Innocence there truly was--for the painting which the amateur had screened from view turned out to be a Gainsborough. The original Gainsborough is at the present moment at the back of the newly-painted picture, and is partly hidden by the stretcher, as shown in the sketch (page 233), made as it lay by the counter in the dealer's shop. [Illustration: THE HIDDEN "GAINSBOROUGH."] One artist might be singled out of whom it may safely be said that he never painted a picture without a history attached to it. Landseer's works abound in suggestive incident and delightful romance. He would paint out of sheer gratitude a picture worth £10,000 simply because an admirer, for whom he had executed a commission, had expressed his approval of the artist's genius, by paying him more money than that originally agreed upon. Such an incident as this was the means of bringing Landseer's brush to work on "The Maid and the Magpie," now in the National Gallery. There are two or three anecdotes--hitherto unpublished, we believe--relating to pictures with histories, and associated with Landseer's name.