Lawrence Birks is recorded at the factory from 1872-1895. He is first mentioned in Solon's notebooks in March of 1872 and is thought to complete the trio of assistants as stipulated in Solon's contract of 1871. Birks later went on to establish his own pottery near Minton in the Stoke area.
For two pair of vases of this rare form (shape no. 1947) see Joan Jones, Minton The First Two Hundred Years of Design and Production, Shrewsbury, 1993, p. 102 and p. 104; For one of these also see Elizabeth Aslin and Paul Atterbury, Minton 1798-1910, Exhibition August - October 1976, Victoria & Albert Museum, London, 1976, p. 81, pl. 67 fig. L22. Other examples in pâte-sur-pâte are not extant.