Mid-century Modern Abstract Fountain Copper Necklace

This copper necklace has a 2 1/2 inch pendant in the shape of an abstract fountain, very mid-century in style. The chain is 18 in long and made of copper, and the spring ring clasp is brass. I can't quite make out the mark on the back. It could have been worn or mistruck. Good condition, very little wear for age. Please message me with any questions. Bundle for a discount.