Call me the thread resurrector!!!
I also have a Morris 9-String, though I string it with a very slim octave string on the doubled G-String. Mine's an RW-650 made in 1959 (which would make her 42 years old to my own callow 27).
I bought it used for less than $400, and I honestly believe her to be the greatest guitar in the world. She's not designed for playing leads easily (Though I'm starting to get the knack) but she has the best and brightest rhythm sound of any guitar I've ever heard. Truly a delight to play. Narrow-ish neck, considering the number of strings, and a low, easy string action and low frets. Some beautiful mother-of-pearl inlay around the edge of the body.
The fellow at the store where I bought it (Gryphon Stringed Intruments, in Palo Alto) said that 9-strings enjoyed a brief period of being in fashion with Rockabilly guitarists in the late '50s. But I've never seen another factory made 9-string, and nobody at any sessions I've been to has either, and that includes some fairly fanatical collectors (some of whom offered me sizable sums for her).
Any more info floating around out there? Anyone else have a factory-made 9-string?
-Mudweasel
PS: Unlike Brendy the masochist with the .015 strings, I keep mine strung with Martin .115's and they stay in tune forever and a day...