Antique Green Closionne Guilloche Sterling Silver Enamel Art Nouveau Necklace

This necklace features a slide lock marked "Silver", guilloche and cloisonne bicone charms with a cloud pattern and oval charms with a striped design that looks like a watermelon. Clasp and links were acid tested. Approximately 28" in length. Item shows wear that is consistent with age and use. Item has not been cleaned. The enamel beads feels a bit sticky. There is tarnish around the links. There are a few areas that are a bright silver. Some irregularities with the enamel as noted in the photos.