Fine crockery, known as terra sigillata, is identified by its characteristicred colour and by having impressed, at the bottom of the vessel the potter's "sigillium" or name-stamp. The first products of this kind present in Lucus Augusti come from the workshops in Arezzo (Italy), that is why it is also known as Italian "terra sigillata".

After 25-30 A.D. Italian workshops are substituted by products coming from workshops in Gaul (Gallic terra sigillata), mainly in the south (La Graufesenque, Montans ...). Under the rule of Claudio-Nerón Spanish terra sigillate burst onto the Lugo market, which took as a model the Italian form, and above all, the south Gallic characteristics, specially the signature and decorative styles of the workshops in Tritium Magallum (Tritio, Ebro's valley).

The most common pottery samples of tableware in Lucus Augusta are plates, cups and bowls. They can be plain or beautifully decorated using a mould. After the Fourth Century A.D., this fine pottery evolves, through changes in production techniques, shape and decorative styles.The multiple examples of the late Spanish terra sigillata belong to this period, coming mainly from the valleys of Ebro and Douro. Contemporaneously new models appearsuch as stamped or grey terra sigillata (also early Christian) and clear sigillatas from North Africa.