is said to have been the first mark used by William Duesbury. The
, which stands either as the initial of Derby or of Duesbury, conjoined with the anchor of Chelsea
is the distinctive mark of the Chelsea-Derby period—the period when William Duesbury, who had purchased the Chelsea works, carried on both the manufactories, and, later, produced goods at Derby from the Chelsea moulds. Two or three varieties of this mark, according to the taste or whim of the workmen, occur (see Figs. [56, 57, and 58]).
Figs. 59 to 61.
Two other marks, the one a