Things You'll Need
Instructions
Learn about Occupied Japan and the associated markings by reading through a website such as OccupiedJapan.net and checking out the extensive photographic library of Occupied Japan markings, arranged by manufacturer, on The 4 Cs website (see Resources).
Search for "Occupied Japan" items on online auction sites for further study. The more familiar you are with the many types of ceramics that were made for export in Japan in the post-World War II years, and the "occupied" markings somewhere on them, the better you'll be able to identify them when you see them for sale.
Pay a visit to the nearest antique mall that carries antique Japanese pottery. Inspect each piece with a magnifying glass and check to see if the piece says either "Made in Occupied Japan" or "Occupied Japan." If it doesn't, it may not have been made for export to the United States during the 1945 to 1952 time frame.