
Undated
Published July 1, 1842 by Jones & Walley Cobridge
The published date refers to the introduction of the design, not a mark-use interval.
Pottery & porcelain · a closer look
The inscription and registration diamond date the pattern registration to 13 May 1843, not mark use.
the registration diamond gives the same date for the registration of the pattern

Undated
The published date refers to the introduction of the design, not a mark-use interval.