There is a big difference between the very early Citoris and those a bit later. The early guns, which started in 1973, are obsolete, meaning have no parts or corporate support (notably have plain receivers), fixed chokes, of course. These are known as pre-Type I and were made through 1976, with much the same mechanical arrangement as the last Miroku-made Charles Daly guns.
Last year I purchased an estate that had a pre series Citori in it. I sold it simply because I knew finding parts could be tough and I wanted one I could hunt with and not worry about repairs with.
