Vintage Tiffany & Co. 18k Rose Gold Mini Key Pendant Necklace

Vintage Tiffany & Co. mini key pendant necklace in rose gold.  ID#: NEC719 Metal: 18k rose gold  Length: 16" with 2" extension Chain Width: 1.1mm  Charm Dimensions: 19.9mm x 8.17mm x 2.42mm  Weight: 3.14g Markings: 'T&Co.' 'Au750' 'Tiffany&Co."