The first place to look for a reign mark on a Chinese piece of porcelain is the bottom of the item. If you do not see a reign mark here, check the mouth of the item, or the exterior of the base.
How do I identify my bone china mark?
Tips for Determining TypeHold the china up to the light. According to Noritake, bone china will be significantly more translucent than other types of porcelain. Examine the color. Noritake also notes that the color of bone china tends to be more ivory than white. Listen to the piece.
How do you know if its Imari?
You can identify Chinese Imari by its brighter white and more purple-toned blue. The red over-glaze is also thinner and closer to orange than in Japanese pieces. Chinese Imari is generally more finely potted than Japanese, with a very even glaze.