The necklace chain is a vintage solid brass box chain that is 16" in length.
The pendant is a vintage Wedgewood cameo from the 1960s that is about 18x25mm in size that has been set in a raw brass oval setting with rope border detailing.
Please note the metal components are raw brass and as such, it is best to avoid humid environments or water exposure which can cause the brass to tarnish. There are brass cleaners available that assist with restoring the natural finish.