I was hoping to get some information on suggested reading materials or links for details of early/late. what is correct or not...How to tell if a part is early or late war...etc. I have a T99 series 2 Nagoya barreled rec'r. I will be building(assembling) into a firing rifle. I have ordered a book on the Arisakas (it's yellow) I think it is more like a manual, from fleabay. I see a quite a few items on there for Arisaka's but they all say 'late war' I wouldnt think there would be so many 'late war' items available if they were inferior quality and metal. Thank you. Sorry if there are typos I am watching the Military channel.