"Simplicitas" Improved Wash-Down Closet

W.G.V. Balchin (Consultant Editor).  The Country Life Book of the Living History of England.  Country Life Books, 1981.

When toilets used to have Latin names.  Water closets eventually supplanted earth closets.

Doulton & Co. Ltd. of Lambeth persevered from 1854 to 1956. The company survives today as Royal Doulton at Burslem, Stoke-on-Trent.  Toilets, china plates--really not much difference except in use.