Correct me if i am wrong , but that is not a nagoya marking on rifle ,looks like a kokura last ditch, and be careful with those last ditch rifles if you plan to fire it, could be dangerous in the least. I do not think nagoya was making last ditchers in fact, i could be wrong.They made the earlier 99s and 38's, I own 3, 2 nagoya earlys and an early kokura.the kokura has the same markings on the top rifle. Pretty sure that is a kokura last ditch, but im not an expert just a novice please correct me if i am wrong someone lol i need to know ya know lol.