Fine Vintage Jewelry - This is a pair of 14K yellow gold stud ball earrings with removable jackets or enhancers.
The balls are 5mm, jackets are 1" long, weight is 1.7 grams. Ball earrings and backs, are hallmarked 14K. Jackets are hallmarked 14K with makers mark NABCO.
Any darkness of discoloration is only reflections.