Hans and Siegfried Wichmann, Chess, Crown Publishers, Inc., New York, 1960, pl. 161.
A related chess set was also sold by Christie's South Kensington, 27 September 1994, lot 99.
The term "Selenus" has been used after a design illustrated in Gustavus Selenus' Das Schach-oder König-Spiel, Leipzip 1616. The form was prevalent throughout Germany and Austria in the 19th century. The pieces are generally turned and carved typically from bone in several sections, then threaded together, polished to simulate ivory, and one side stained in either red, black or brown.