Collect
上條幸夫(or 上条幸夫 )=Kamijo Yukio RAZOR 6/8"
French Point HALF HOLLOW uncommon
Rare hand engraved上條作 = Kamijo saku, made by Kamijo
七一=SN 71
Reference material https://historyrazors.wordpress.com/.../kamijo-yukio/
(Thank you author)
Attachment 307540