Antique 1910s Crescent Moon Abalone Shell Hat Pin

Gorgeous late Edwardian or teens-era sterling silver hat pin made of iridescent abalone shell in a crescent moon shape. Could also be used for a scarf!

Materials: Sterling silver, German silver, genuine abalone shell.

Two are available: 

(A) White tone (with box)

(B) Purple tone

Measurements:

Length of pin: 6cm

Crescent moon: 1.75cm

Condition: No flaws to the shell. The silver is tarnished.