Vintage Skeleton Key to My Heart Happiness Austrian Crystal Pendant Necklace

Vintage Skeleton Key to My Heart Happiness Austrian Crystal Pendant Necklace Silvertone Metal w/ "Antiqued" Delicate Black Accents - Unsure what type of Metal Intricate Sculpted Design - 6 Clear Austrian Crystals Chain measures about 9.75 - Key measures about 1.5 inches - Total Length is about 11.5 Inches w/ Loop Vintage (2013) but it has never been worn - It has some slight discoloration or tarnish on the chain from handling It is unmarked but the original receipt says in Creative Ventures - Not sure if that is the original company that sold it or if is is a brand name