my friend bought this bike last week (this was the "$150 track bike" from NYC craigslist).
it was the dirtiest bike i'd ever seen. it had been poorly painted with what looks like regular old latex house paint, and every last surface on the bike is covered in oxidation and crap from sitting outside for two years in the rain, snow and sun.
we've been disassembling it and stripping the paint over the last few days and found some interesting things.
the only markings on the frame are suntour stamps on the track ends (the old suntour logo, followed by "10mm"), and a serial number stamped into the drive side of the downtube, just above the BB. (perhaps bq can post the serial number to this thread later).
it's got 120 spacing, 68mm bb shell, rear brake hole (which may or may not be a home-brew mod).
i think the original parts left on the bike are the headset and the wheels. the headset was totally covered in grime and no markings were visibile until we removed it and soaked it in simple green for an hour or so. turns out to be a black 1" Hatta headset in pretty nice condition. we'll replace the bearings and it'll be good as new.
the wheels are old 36h, high flange suzue hubs, marked only "Suzue Japan" and are threaded on only one side. they're mated to araya rims (marked only "Araya 700c Japan").
the other parts on the bike were an assortment of mid-grade, road components.
anyway, it seems to be a japanese frame, but i have no idea who made it. the nice headset makes me think it was a high end bike. take a look at the following shots:
the frame and fork
the BB. anyone recognize those lugs? also note in this picture and the one above how the chainstays are a bit fatter right behind the bb.
seat lug - no markings!
suntour logo on the ends. all the rust disappeared when the paint was removed.
poor picture of the headtube lugs. you can't see all of it, but perhaps the most interesting feature of these lugs is how they come to a little point on the front of the head tube. that's somewhat unusual.