Listed as 1733 in some documents.
The World of Fritz Kreisler, Leslie Sheppard, The Strad, August, 1979, London
"The fittings of this violin are beautiful indeed. On the tailpiece the initials of Guarnerius and the date 1737 appear in diamonds. The pegs and button are set with diamonds and rubies. The case alone of this prize is valued at £200."
Correspondence, The Violin Times, July, 1902, London
"How it came into the possession of its present owner we will let him tell in his own words. Here is the story. " One day as I entered the rooms of Mr. Hart I heard a voice, liquid, pure, penetrating, which filled my soul with longing and made me determined to possess such a treasure at any cost. There were difficulties in the way, as Mr. Hart had already parted with it to a collector, and it
was only after long and earnest persuasion, in which Mr. Hart joined, that I was enabled to buy it for £2000." What really turned the scale however was the fact that on hearing the artist play on the violin, its possessor decided that any one who could bring such wonderful sounds from it deserved to have it for his own. The " Hart Guarnerius " belonged to the late Mr. George Hart, who prized it so highly that he could not be induced to part with it. His son received offers from people in every part of the world, and the late Professor Wilhelmj made repeated efforts to obtain it, but without success. The date of the violin is 1737, and the initials of the famous Joseph Guarnerius are set in diamonds on the tail piece, while the pegs and buttons are also ornamented with diamonds and rubies."
Fritz Kreisler's Violins, B. Henderson, The Strad, 1908, London