Old Celine chain necklace, gold

This is a chain necklace from the Phoebe Philo era of Celine.
I purchased it with alphabet charms.
I loved it and wore it frequently, so the plating has faded and become dull. There are also small scratches.
The clasp is engraved with "celine," but there are black stains and peeling, typical of plating. It's small, so it's difficult to photograph, but please check the images.
The "S" charm in the last photo is not included, but please use it to check the color of the plating.
The original price was around 20,000 yen, I think.
I'm selling it because I bought a new chain.