Samuel Alcock was a painter of great skill, active from 1882 until the 1900's. He received high praise at the Paris Exhibition of 1889. Painting ladies of fashion, he was known to have made his daughters pose for him. Also known for his difficult and superior temperament, Alcock would only sign pieces he considered to be of the highest quality.
See Christie's, New York 20 & 21 April 2005, lot 116 for a smaller pair by Alcock.