That's such a cute dress! I don't recall the label offhand, but I probably had something with that label in it hanging in my closet in high school--I wore a lot of that sort of style and took junior petite sizing. I think your dress might be late 60s instead of 70s--blue & green was a very popular color combo, as well as the neckline looks more 60-ish. It looks like that period when "dolly" mod, flower child, and hippie/psychedelic fashions were sort of all out there, kind of the ending of one era and the start of another.