Where was The Hands of Orlac (1960) filmed?

1960 film by Edmond T. Gréville

The Hands of Orlac (1960) was filmed in French Riviera, 1 place named in its Wikipedia article's Production section, in France. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

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