They started using that badge in 1980 or '81. If these reflectors are original I think they probably date to the mid-1980s. You should be able to find date stamps on some components.
It's a fairly low-end bike with the Huret Eco derailleur and basic shifters, but it will still be perfectly usable and it looks as if a weekend or so of cleaning and greasing is all it needs to be ready to go.