antique Art Nouveau necklace Gas Tube Collection. Long antique necklace with a gas tube chain adorned with leaves representing the papal coin. Ancient patina. Necklace dimensions approximately 53 cm long. It opens and closes with a hook. See photo; its weight is approximately 77 g. In good vintage condition. This piece can also be used as a belt, but a very slim waist is required for that. For shipping outside Europe, please request a quote. Condition: Used: Item has been worn. ... Used: Item has been worn. the possible imperfections. Dominant stone: No Brand: Art Nouveau Type: Pendant necklace Dominant color: Gold Material: No Theme: Papal Coin