Interlocking Chanel Brooch / Pin, Black & Crystal, comes with pouch and box

Interlocking Chanel Brooch / Pin, Black & Crystal, comes with pouch and box. My husband got this for me ages ago through 1st Dibs, which sells authentic luxury baubles. I have only worn it 4-5 times as I don't really wear pins (but I LOVE IT as iconic Chanel). Excellent condition and comes with pouch, box. Stamp shown in pix (stamp is on back of brooch, on back of one of the crystal encasements).