Untamable Angelique (1967)
(Indomptable Angélique)
https://www.imdb.com/title/tt0061819/
This is one of series of French films starring Michèle Mercier as heroine Angelique who is always getting in trouble and naked. Here we find Angelique captured by pirates and taken to the slave market to be sold. She is presented to the buyers in a purple bikini. Her top is then removed to display her charms. She covers herself quickly with her arms, so we don't see anything clearly, but I think it is quite sexy.
For years I could not tell if Mercier was topless or wearing pasties over her nipples for this scene. It was hard to tell with old low rez versions. The latest HD DVD release seems to confirm the pasties. I attached my edited version of the scene of just her being stripped. I also did a slow motion version and upscaled to show what appear to be pasties.
A topless Mercier with her her arms covering her breasts is the best part of the film. Stills of it were used in most of the advertising and publicity shots for the film as I have attached.