4th Sword in collection
Article about: I don't have anything to write about this sword. It is good shape with clear markings on the tang.
Shōwa jū hachi-nen nijū-gatsu
Edit: Full name 三品 義明 Mishina Yoshiaki; classified as "Ge-saku" [low quality]. source
source with more photos.
Stamp on the spine of the nakago: