Vintage 1/20 12K GF Onyx Pendant On 18” 1/20 12k Gold Filled chain Necklace.
Pendant is marked in two place in back of it. It is 7/8" tall including ring on top of it  by 5/8" wide. The total weight with necklace 2.98 grams.The 18 inch chain is marked 1/20 12K GF TK which is Tru-Kay Mfg. Co.(Providence, RI).
"TK" or "Tru-Kay": Highly active during the 1950s and mid-20th century, though they produced items earlier and later.
  • Markings: Often seen as "TK," "Tru-Kay," or "TK 1/20 12K G.F.".
    • It is in very good condition and comes in a gift box.