In 1860 the Wedgwood factory started marking its wares with the date of manufacture impressed in each piece as part of a three letter code. The first letter of the code represents the month of manufacture, the second identified the potter who threw the shape and the last letter signifying the year the piece was made starting with 0 for 1860. In 1871 Wedgwood adopted pattern numbers with the code letter prefixes.
Queensware, a cream-colored pottery developed by Josiah Wedgwood, was a popular dinnerware by 1765.
This impressed mark indicates the year 1867 before a new letter was assigned in 1868.