These are a pair of stunning fan motif Mikimoto Japanese akoya saltwater cultured pearl screwback earrings. 

The pearls are 5.00mm round. They have mirror like luster with extremely bright rosy overtones.

They are made of solid sterling. Stamped "M" in a clamshell for Mikimoto and "S" in a square for silver. Measures 7/8 Inch across.

All pearls are truly vintage and have only been lightly cleaned.