
Blue and Grey: Dieppe is assumed to date from Whistler's visit to Dieppe in the autumn of 1885, and was exhibited in Whistler's one-man show, 'Notes' - 'Harmonies' - 'Nocturnes', Second Series, Messrs Dowdeswell, London, 1886 (cat. no. 28). 1

Blue and Grey: Dieppe, Whereabouts unknown
Only one title is known, with varying punctuation:
'Blue and Grey: Dieppe' is the preferred version.
It was presumably a scene of sea and sand.
Dieppe, a ferry port and popular tourist town on the coast of France.
Unknown.
Unknown.
Unknown.
Unknown.
The value of 'Blue and grey Dieppe' was estimated by Dowdeswell at a modest £18.0.0 but it was finally priced £20.0.0 by Whistler. 4 It may be the same picture exhibited in the following year as Bleu et argent: Dieppe y332.
The Illustrated London News on 15 May 1886 commented:
'At Messrs. Dowdeswell’s Gallery (133, New Bond-street) there is a somewhat remarkable exhibition of Notes—Harmonies and Nocturnes,” by Mr. J. McN. Whistler, which display all that versatile artist’s merits and faults. The difficulty in estimating such works is to know for certain when Mr. Whistler is in earnest, and when he is simply imposing on the public. For instance, there are here at least half score of works which belong to the former category; among such are the "Sands at Dieppe" (1)," ... "Dieppe" (28), "The Sad Seashore" (43), "La Cour de L'Hôtel" (46), "The Sweet-Shop" (49), … For such as these we can only express an unfeigned admiration.'
1: YMSM 1980 [more] (cat. no. 331).
2: 'Notes' - 'Harmonies' - 'Nocturnes', Second Series, Messrs Dowdeswell, London, 1886 (cat. no. 28).
3: YMSM 1980 [more] (cat. no. 331).
4: Annotated catalogue, GUL Whistler EC1886.