Love this little gem...lots of color in this bezel set 15mm X 19mm opal doublet. This pin dates to the late 1950-early 1960's.
The mounting has a whimsical, looped rope design and measures 23mm X 27mm.
No hall marks on this pin, but it has been verified by my gemologist as gold filled.
The pin is in perfect working condition in its ability to open and close.