The date on the reverse of both bracelets suggests that they were made to commemorate the sitters’ marriage, which took place in the same year. The miniature of Victoria, Princess Royal, is after Winterhalter’s oil on canvas portrait of June 1857 (now in the British Royal Collection, inv. no. 404580). For two signed enamel miniatures of Victoria, Princess Royal, by William Charles Bell, also after the Winterhalter portrait, see V. Remington, Victorian Miniatures in the Collection of Her Majesty The Queen, London, 2010, I, p. 49, nos. 29 and 30.