The box is 1980. Topps was prophetic as the Astros had a pretty good year. I was at Dodger Stadium when they won a one-game playoff vs the Dodgers to win the NL West for their first division title. Impressive since they lost their only superstar at the all-star break.
http://www.bbcexchange.com/1980_Topp...ox-ITEM52.aspx