The out of season Dog Violet with a lilac-purple spur

On the main part of the lower slopes of Mill Hill I spotted my first Hairy Violet and later I spotted just the one Dog Violet in flower, identified by its pointed sepals, but it had a white and lilac spur. It was also possible it had hairy leaves, but it was possible that the hairy leaf belonged to another plant? This oddity is illustrated in the photographs above.
PS: Dog Violets were discovered in prime flowering condition on 26 May 2003, so they can be later than normal.
 

Dog-Violet, Viola riviniana (Lower slopes, 26 May 2003)