This Vintage 12 K gold fill book locket is stamped as such on the inside, and has elements of white, yellow, and rose gold, for a mixed metal look that will go with any of your other jewelry.
The chain is 1950s/60s deadstock, and is white gold fill with a Rhodium plating for extra lustre and to keep tarnish down (Rhodium is in the platinum family).
The locket opens on a side hinge like a book and has one flat page on the inside (see photos). The front face of the pendant has the initials F.R.G. faintly engraved on it along with some decorative swirls. The back side of the locked is polished smooth. The pendant is hanging on a twist style chain.
Chain Length: 19"