Well, boys, I found the rifle. First, I called a local gunsmith, and described it. He told me it was a type 1 Arisaka, made for Japan by Carcano in Italy.
I then searched Google, and found the rifle pictured on a website there. It is the same action as the Mannlicher-Carcano, and is a 6.5 caliber. There are no markings other than the serial number.
I figure it will be fun to tinker with. Ammo will be a problem, I'm sure.
Thanks anyway. I'm not versed in the fine points of digital photography so couldn't send a picture.
Jack