TWSBI - 1791 Combo Colour 6 Pack

TWSBI was formed in 2009 as a subsidiary of the Taiwanese manufacturer Ta Shin Precision.  For over 50 years the company had manufactured parts for other pen manufacturers.
From the TWSBI web site:

TWSBI's name stands for the phrase "Hall of Three Cultures" or "San Wen Tong" in Chinese. The character "Wen" translates into language and culture. The phrase "San Wen Tong" also brings to mind the Hall of the Three Rare Treasures created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the phrase "San Wen Tong" was reversed and thus turned into "TWS". The last letters "Bi" was added with its literal meaning of "writing instruments". Thus combining the two segments, creating TWSBI.

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