Watch List notes:

JAPAN: Showa, 1926-1989, pattern 1 sen, ND, pattern in red porcelain, Paulownia Flower Seal / kotobuki ("longevity") in stylized script, four auspicious clouds, Unc, R. The Government Seal of Japan, also called the Paulownia Flower Seal is a crest (mon) used by the Cabinet and the Government of Japan on official documents. This is part of a series of patterns, all privately produced throughout Japan for possible government approval. Only two of the many types are published in the JNDA catalog. They are known dated Showa year 19 (1944), Showa year 20 (1945) and undated; all types are rare.

Estimate: 350- 450 USD