And this is the Ross I picked up with the rest.
Despite it's having a nicely lugged frame I think I'm just going to part this one out since it has full Shimano kit from the brakes to the dérailleurs and use it on my primary beater bike that I refuse to ever part with.
Update - 4/22/08: I discovered today that this bike has what Shimano called their "Front Freewheel" system, where the rear gearing was fixed to the wheel and the freewheel was part of the bottom bracket.
The freewheel was built into the bottom bracket so that the chain would turn even when the rider was coasting. This was to allow shifting while coasting.
I'm hoping this will fit my old Huffy beater, mainly because it's weird.