only if you tell me how long is this piece of string it doesn't look like a modern mark we need to see more though of the piece
The signature does appear to be a version of "Kinkozan", written in a rapid free style. These are the Japanese characters - 錦光山造 This is the closest comparison I have found - https://www.bluecherryantiques.co.uk/pages/japanese-satsuma-ware-marks-and-information More information from Gotheborg - "Kinkozan Sobei The Kinkozan family have been associated with pottery since 1645. They went on to become the largest producer of Satsuma ware, from the end of the 19th century until 1927 after which the factory closed. By the 1850s Kobayashi Sobei (1824-84), Kinkozan Sobei (artist name Kinkozan IV), started to export his products together with the Kyoto manufacturer Taizan VIII. The market was in particular America. Their main production period was approximately between 1875-1927 under the leadership of Kinkozan V (1868-1927). Regarding styles, in her book Treasury of Satsuma, Sandra Andacht quotes a 19th century visitor to the Kinkozan factory, saying that the same glazed pots were decorated in two styles, the one being called Kyoto or Awata ware, and the other Satsuma." https://www.gotheborg.com/marks/satsuma.shtml Kinkozan was a family name, and the name of the factory where they produced pottery. The signature might represent the factory, or the artist who did the decorating. But authenticating an important signature would probably require a hands-on examination by a specialist who can assess the quality of the work.