Set of Grumbacher dip pen nib holders is the object of desire at Inklinks today. Age wear they do have but the polished wood is to die for as is their the sunny (or egg) yellow, and warm blue colour. I have fitted them with Myers Silver Series nib No. 9 - a stiff medium point "bowl point" nib with Myers' distinctive keyhole vent.
Grumbacher (USA) was founded by Austrian immigrant Max Grumbacher in 1903 and began to import artist materials from Schmincke Germany, eventually getting the licence to manufacture said materials in the U.S. in the 1920s. Grumbacher artist colors were so successful that they were used in Walt Disney films such as Snow White and Fantasia. In the 1960s Grumbacher made the the brushes used by Apollo astronauts to collect moon dust. The company was purchased in 1992 by Koh-I-Noor.
Find the Grumbacher nib holders at Inklinks