With the felt money pouchette and it's being identical to ones in Laura's book, I would say definitely 50s.
I collected compacts and compacts/carryalls for about ten years and yours looks 50s to me, and in near mint condition.
I think women would buy these, or were given them as gifts, and they often sat in dresser drawers unused for years ~ ones that were actually used became scratched, mirrors discolored, etc.
I have never seen one with this type of interior that was 70s. The 70s metal purses I've seen did not have interior compartments like the older ones and were usually lined with a rayon grosgrain like fabric.
~ Debbie