Cat-eye. At the end of the 80's one of the most interesting brand on the Italian scenario - Nouvelle Vague - launched the Sidney model, which became immediately a bestselling, and today itself it's still remembered for having being a signature piece of the collection.
New old stock (never worn). Vintage items sometimes may show some signs of time: this is not considered be defective. Please also note that demo lenses may have some scratches, and vintage items may arrive without original box.