That’s the translation of the little slip of paper on the back of the butterfly, Plique a jour. An enameling technique similar to cloisonne but with no backing so that the light can shine through. It’s meant to be worn as a pin but I might turn it into an occasional suncatcher. A wonderful find in an old shop. A dainty little thing, bits of damage, an antennae missing. Still beautiful. And as much as the design, I like that idea of letting in daylight at any time of day.
Words + Images 
Lovely find! Congrats. I’d say hang it in a window and let in live in the light. Colin taught me that technique at an MFA jewelry exhibit, and I caught his enthusiasm. You know, it’s quite like stained glass windows, in that light is part of the design. So no wonder it waited to be owned by you.