Picked up a Nagoya Type 99, no series yesterday. Mum is partially ground, every number matches. Cleaning rod is present, and every screw on it is staked. It also sports the oval 'quick release' rear sling swivel. Information I am finding on these is that these were intended for cavalry before they started issuing 99s to everyone. Is this info correct? I ask, because this is the first one of these that I've ever seen. It's a very interesting rifle.