Tachikawa T-36P Pen Holder
Kuretake Manga Dual Penholder is made from plastic and has an ergonomically comfortable rubber grip. The outer circle is used for the Tachikawa G Nib, School Nib and Saji nib. Use the inner circle for the smaller Maru nib.
The following nibs will also fit this holder; Brause 361, Nikko G, Zebra G, Crown, Hunt 22B, Gillott 303, Brause 66ef, Brause Bandzug nibs and Speedball 'C' Style nibs.