Marine: Blue and Grey was painted in the mid-1880s; it probably dates from Whistler's stay in St Ives in 1884, or shortly afterwards.

Marine: Blue and Grey, Colby College Museum of Art

It was once thought to date from the early 1890s, but the signature and dark colouration suggest the earlier date. 1

It may have been among paintings exhibited in 'Notes' - 'Harmonies' - 'Nocturnes', Messrs Dowdeswell, London, 1884, such as Sea and Storm: Grey and Green [YMSM 283].