Vintage Modernist Large Pendant Necklace Unsigned Erwin Pearl? “AS IS”

This vintage necklace features a large heavy 3” pendant with a steampunk-inspired theme. The necklace is pre-owned and vintage possibly Erwin Pearl.

but unsigned. There is a little damage to the pendant. Please see close-up photos.

Photo from Etsy site what I believe it to be.

Happy to answer questions.