TWSBI 1791 Fountain Pen Ink - Combo Colour Set 6 x 18mLThe 1791 series comes from a book written in China in the year 1791 called Dream of Red Chambers. It is one of China's 4 great classical novels and we picked colors out of the buildings and descriptions within this book for this 6 pack series of inks. TWSBI 1791 Ink Combo Colour Set 6 x 18ml. Includes the following colours: Sky Blue Emerald Green Royal Purple Pink Orange Prairie Green Made in China.