During the Muromachi period (1336-1573), Japan began to import great quantities of silk from China. Silk was one of the most important imports into Japan, and it is believed that ito-in were affixed to shipping cases containing silk. It may be that they were used to seal the package of silk, or that they were placed on receipts as proof of the transaction. Ito-in might also have been attached to silk shipments as a sort of certificate of the origin or quality of the goods. Ito-in means literally “thread seal.” They were also called “hakata-in,” or seals from Hakata, a trade port which played a leading role in the trade with China during this period.

Ito-in are bronze seals which are lighter in weight and smaller in size than traditional bronze seals. They were cast by a special method to make the inside of the grip hollow in order to minimize the weight, and the base was considerably thinner than ordinary seals. This indicates that ito-in were usually attached to something. Another name for them is “himo-in,” or “seals with cord.” Without exception, every existing ito-in has an aperture through which a cord can easily pass.

Experts differ on the question of whether these seals originated in Japan or China, and their origin is shrouded in mystery. Ito-in are not seals in the strict sense of the word -- they were not made for use exclusively as seals. They have engraved designs which look at first sight like strange forms of Chinese characters, yet with very few exceptions, they cannot be read. Moreover, there are duplicates in the inscriptions as well as in the figures on the grips, so they were presumably cast from the same mold which was used over and over again. If ito-in were made as seals, there should not have been duplicates. The grips were richly decorated with animal or human figures, and they were cast in numerous shapes. Their overall features had more in common with Yuan and Ming dynasty seals than with Japanese seals of the same time period. Additionally, the clothing, hair styles and facial expressions of the human figures used for the grip are definitely Chinese, and the handling of animal motifs is permeated with a strong Chinese influence. Despite this, ito-in were regarded as seals in Japan, as the name itself reveals. They were even used as personal seals by many daimyo, including Toyotomi Hideyoshi, who used ito-in often in their documents.

Ito-in are also of interest due to their considerable influence on the development of netsuke, but that is another whole area of discussion unto itself. We have learned these details from an incredibly fascinating article, “Ito-In Japanese Silk Seals: An Inspiration for Netsuke?” by Kinya Niiseki (ARTS OF ASIA, July/August 1979) where seals and stamps similar to this one are copiously illustrated.

CONDITION is excellent, with wonderful patina and wear from centuries of handling. There is some minor loss on one side of the seal rim which is consistent with age and usage. DIMENSIONS: 1 ½” (3.8 cm) high x 1 1/8” (3 cm) wide and deep at base.