that was the second type A bag Convertible from 1978, and one of the last metal based. it was the low end to the Sea Blue Estate, the two models were avilible till 1979 and the very last were plasic based. you cant tell with the green until you turn it over and look. but the Esate beacame "elite" and that genrally is the first clue (and yes the clor and bag satyed the same)