First generation Shimano 105 places it 1983-1986. Assuming the fade paint is OEM would place it in the latter half of that timeframe. There was a Laser brand owned by a Florida based marketing company called the American Cycle Group. I don't know who contract manufactrured the bicycles for them, though given the level and era, it's likely Asian manufacture. The frame itself looks lower mid-range, which is consistent with the components. The serial number may allow us to determine the actual year and manufacturer.