V&A online catalogue (retrieved 6th July 2016).
SA
Wool work is a form of decorative needlework made from woollen threads. This type of embroidery is sometimes called crewel embroidery, but the term wool work actually covers a wider range of embroidery forms. One popular nineteenth century form of wool work in various parts of the world was Berlin wool work.
V&A online catalogue (retrieved 6th July 2016).
SA