Looking at this bicycle, I just get the gut feel that it may be a mid level model. There is no apparent chrome. The bottom bracket cable routing tunnels are quite crude. The rear dropouts do not appear to have holes for adjusting screws. There are only two brake cable tunnels on the top tube.

To this end, I'd be doing a little closer examination of the frame, to determine if it might be a mid level model. What size seat post does it take? Is there any sign of a weld seam down the inside of the seat tube? If you have the fork, are there helical ridges inside the bottom of the steering column?