The frame itself looks decent with brazed-on shift bosses, forged dropout with integral hanger and top tube cable clips. However, the crankset, which would appear to be OEM based on the branding, is only a swaged unit. While the rims appears to be aluminum, they also appear to be 27" rims based on the Schraeder valves and they look like OEM size based on the pad position in what appears to be Universal 68 brakes. The components appeaqr to be OEM with hte obvious exception of the rear derailleur. My overall impression is late 1970s and lower mid-range. It's probably a lightweight hi-tensile steel. The best indicator to the grade of the frame will be the seat post diameter and whether or not the fork has a Columbus steer tube.