Instructions
How to Identify ̶0;N̶1; Mark on Italian Porcelain
Examine the at the mark on your piece of porcelain, using a magnifying glass or jeweler's loupe if needed.
See if the mark has a crown over an "N." If so, your piece could be Capodimonte.
Look at the subtleties of the way the ̶0;N̶1; is formed, and the way the crown is shaped. Click on the link to Antiques in the Resources section. If you have the exact mark shown there, your Capodimonte piece was made between 1771 and 1834. If the mark is not an exact match to that example, continue to Step 4.
See if the mark on your piece has a straighter ̶0;N̶1; and a more stylized crown, compare your mark to those shown on Onlinecollectibles.com listed in the Resources section. There were several other marks similar to the oldest Capodimonte mark used during other periods, and you will find dating information (as well as other Capodimonte marks) there.