This is 11 inches by 7 inch oval bowl Im not sure what it is made from but it does have a stamp on the bottom of it.
It was given to me my by an employer a few years ago
Thank you for submitting your item for appraisal. This appears to be chinese famille Noire porcelain bowl of very recent production, circa 1990s. The transfer printed mark is purely fictional. Similar sell well below 50 USD at auctions. There is no measurement for the sentimental value you might attach to the item. I have to list it as not authentic unfortunately.