
Finger was drawn in an unrelated letter from Whistler to Henry John Cockayne Cust (1861-1917), the Editor of the Pall Mall Gazette dated 4 April 1894. 1

Finger, Glasgow University Library
It was catalogued in MacDonald 1995 (cat. rais.) [more] (cat. no. 1404).

Finger, Glasgow University Library
Rough sketches of a finger.

Finger, Glasgow University Library
The letter is in pen, the sketches in pencil.
The paper is grubby and ink-stained, the right side, irregular.
Although the letter was addressed to Henry John Cockayne Cust (1861-1917) it is not certain that it was actually sent to him, since it was in Whistler's possession at his death.
It was not exhibited at any time.
1: GUW #04395.