Looks a bit like a finger bowl, not sure when they went out of fashion?, a popular pattern and made for a very long time.
One of my favourites, here are four i have to hand, the first is Royal Doulton silver wedding, the second is either Bridge crystal or Kinver crystal as they used the same or very similar blanks, the third i think could be American and the fourth about 1860-80 in date.
As to yours it could be tricky finding a maker, it's just by chance i found the Royal Doulton pattern looking for something else.
Regards Chris.