With the exception of the fork, it looks like my first and last titanium bike that I got new in the early 90's. It was manufactured by Sandvik and sold through Fuji. It had a bare brushed finish, drop tube bosses and 1" tubes. Fuji slapped some absolutely horrendous peel and stick decals on it, that I promptly removed. Other than a stamped SS# on the bottom side of the BB, it had no markings. I bought it as a bare frame and built it up. IIRC this was a common manufacturing arrangement BITD. If yours comes from that era, other than deciphering the SS# I doubt if you'll be able to figure out brand or model. Don't worry about its pedigree, just ride it. Mine had a nice plush ride, although the BB was a little noodly.