Not much to go on but those are sidepull brakes, as opposed to centrepull. You can see the rear brake housing going into the caliper cable stop on the close-up photo of the seat lug cluster. Down tube shift levers indicate it's better than entry level. Combination of top tube cable clamps, clamp on shifters and what appear to be 700C wheels indicate circa 1978-1980. The crankset looks like it may be a Sugino Super Maxy. I believe this is an International. If so, this is right around the time they switched from a plain CrMo main triangle to a double butted CrMo main triangle, so it could go either way.