Putting a date to your Spode pieces can be difficult. Here are some tips.
Using the Spode archive and published books you can learn about different backstamps (company marks) on Spode pieces. This though can only be a guide to a date - it is not an exact science and some backstamps were used for many, many years. Learning about styles and shapes can also help date pieces, particularly on the older pieces from the early 1800s when many were not marked.
Spode Shards from the Spode site with backstamps c1800-1833
(A range of Spode shards can be seen incorporated in a mosaic in the entrance to
the Potteries Museum & Art Gallery)