TWSBI is a Taiwanese fountain pen brand featuring affordable demonstrators with pistons. TWSBI's name stands for the phrase 三文堂 "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.
The TWSBI Diamond is an attractive demonstrator pen with piston filler mechanism. Its faceted barrel catches light and makes your ink shine, and it also helps keep the pen from rolling away. Check out this pen in other nib sizes.