Dagmar Havlová

 

Czech actress Dagmar Havlová wears a denim vest in a short sequence of the Czech movie Úplně beznadějný případ from 1978.

Gudrun in Triple Denim

 

Skandinavian model Gudrun appeared in some special kind of movies and magazines in the later 1970s. And she wore a blue jeans and denim vest outfit in one of those episodes. Found in the VEF

I think, Gudrun wore a popular denim vest by Wrangler in this photo set:

I took some vidcaps from the loop to show you the parts of the video, when the triple denim outfit turned into a double denim one.