A NIPPON CORALENE DECORATED PORCELAIN HANDLED VASE circa 1909 with beaded glass decoration of purple wisteria on a shaded satin green and amber ground, magenta "U.S. patent 1909" mark.
Nippon porcelain refers to ceramic objects stamped with the word Nippon on their bases. The practice began in 1891 after the U.S. McKinley Tariff Act, which forbade the import of items that weren’t “plainly marked, stamped, branded, or labeled in legible English words.” Nippon is an English word approximating a pronunciation of the Japanese word for Japan, but in 1921, the word was ruled Japanese in origin, so Nippon was no longer accepted by U.S. Customs Agents. From then on, imported Japanese china was stamped Japan.












