Dragon Theme O-Kozuka Signed "Edo Iwamoto Masashige" with NBTHK Tokubetsu Hozon Tosogu
Kozuka signed "Edo Iwamoto Masashige". I have researched this maker but could not find any information about him or different examples of his work. This kozuka comes with NBTHK Tokubetsu Hozon Tosogu, so there must be some information out there. It might reacquire a trip to NBTHK library to find out more. Because of the similarities in name he could be a student of Iwamoto Masatoshi.
According to NBTHK it is made of shibuichi. Carved with katakiri-bori.