Japan-made products manufactured after April 1952 typically bear the mark "Made in Japan." Japan-made products produced before April 1952 usually bear the mark "Nippon" or "Made in Occupied Japan."
Country of origin marks by Japan changed throughout the 19th and 20th centuries and mirror historical events. Country of origin marks generally connote products manufactured after 1891 in accordance with the McKinley Tariff Act. Late 19th and early 20th century Japan-made products, especially ceramics, bear the mark "Nippon," which is the transliterated Japanese word for Japan.
The "Made in Occupied Japan" mark occurs on toys, pottery, porcelain and other goods manufactured between 1947 and 1952, during the American occupation of Japan. While "Made in Japan" is currently the most widespread country of origin Japanese mark, a newer mark, "J Quality," now appears on clothing and premium goods manufactured in Japan as of 2015.