Vintage Black and Gold Floral Locket with Photo of a Young Woman 1930s in Box

This is a gorgeous vintage locket. It's gold (likely gold-plated silver), with black enamel and gold floral details. Inside the locket, it's copper-colored, with a true vintage oval photo on the righthand side of a young woman. From the woman's hair and clothing, I'd guess it's from the late 1920s or early 1930s. The bail looks like it does have some markings, but they're quite faded, and I'm unable to identify the maker. The pendant is in very good, wearable condition. There are some signs of patina or wear, but it's been gently cleaned and sanitized, and it's in good shape considering its age. The locket is 2" (including the bail) by 1.35". The inside fits a photo of 1.4" by 1" The chain is more modern; it's adjustable; it can be worn anywhere from 18" to 22" The necklace will come in a gift box.