C. 1960 Vintage 2.4mm Turquoise Grapevine Pin in 18kt Yellow Gold

18KT: Karat (abbreviated kt or K) is a unit that indicates the purity of gold in the metal. 18kt is 75% gold. In Europe, 18K yellow gold is most favored and used in jewelry.

YELLOW GOLD: Gold is a precious metal with a natural yellow color. It is quite soft and often alloyed with other metals to increase its strength. The purity of the metal is indicated by a unit called a "karat," with 24kt having the highest percentage of natural gold.

TEXTURED: A unique and varying finish with a tactile surface applied through various techniques, both by hand and with machinery.

REVOLVER: A safety that conceals the point of a pin and keeps it in place with a revolving lever mechanism.

TURQUOISE: Typically polished and featuring a cabochon cut, turquoise is prized for its depth of color and the visual interest found in veins of matrix stone. Prized as a gemstone for 1000's of years, legend holds that turquoise has protective qualities.