Boshu Nokogiri (Saw) by Nakaya Yoshizo, 270mm, 1 shaku (Japanese unit of length), Ryoba (double-edged) saw. Unfortunately, the maker went out of business several years ago. I have been using these saws since I was a young apprentice. Difficult to obtain. There is little rust, and the condition is good, but there is some rust that does not affect use. Please check the images. Last one available. No further stock will be available. Thank you. [Used Goods Dealer] Chiba Prefectural Public Safety Commission Permit No. 441230000407