I have just encountered, for the first time, this letter from Sydney Cockerell [Wikipedia] to the Editor of the Burlington Magazine for Connoisseurs, 30 no. 169 (April 1917), p. 154 [click the images to enlarge them]:
I have just encountered, for the first time, this letter from Sydney Cockerell [Wikipedia] to the Editor of the Burlington Magazine for Connoisseurs, 30 no. 169 (April 1917), p. 154 [click the images to enlarge them]:
