John C

Steve: I have 2 more pics for you...the nakago and the registration card. Much appreciated. John C.

Thank you Bruce and Steve for the input. As for other marks, the tsuka, saya, and other fittings were not military and I could not find any other marks on them. I found one reference that suggested the Dai (or O, or Tai, or Y as in Yamato) was used at the Tokyo Arsenal 2nd factory in Kokura at least on the Nambu pistol. Additionally, I found another reference that listed the second mark as a principal inspection mark at the same factory (that may have been from a page posted by you, Bruce). Here are some further pictures of the sword, which may help in identifying it. Its overall length is 57.5cm with a 44.1cm cutting edge. The registration card indicated it was registered in Okayama Prefecture in 1965. And thank you all again for the assistance.

Hello everyone: I am new to this site and, as you may have guessed, this is my first post. So please let me know if this post should be part of some other topic. I have a question about a Dai mark on the mune of what I believe to be a Showa era Wakazashi. The mark is just above what I think is the kanji for the number 7. There is a space then 4 diagonal tick marks. The research I have done suggests that both marks were used as inspection marks at one point by the Kokura arsenal. What I can't figure out is 1) why both marks would be on the same sword; 2) what the tick marks mean; 3) the time frame; and 4) were wakazashis even made there? There is a mei on the sword that may not be genuine (Minamoto Sadamori kami(?). There are no other marks or stamps that I can find. Any assistance you all could provide would be greatly appreciated. Regards, John C. .