The pendant is anauthentic vintage Louis Vuitton lock and key.
Phillip Allen Hefner Designs (PAHD) uses solid bronze chains with a copper bath. This creates a stronger bond for the 24kt Gold, sterling silver, or black rhodium plating.
The Louis Vuitton lock is authentic, It has a 3-digit number to indicate from which seasonal handbag collection it came. PAHD creates unique jewelry pieces using authentic repurposed Louis Vuitton locks.