Antique 1910s Rectangular Abalone Shell Silver Lingerie Pins

Gorgeous 1910s or 20s era sterling silver lingerie pins made of iridescent abalone shell in a rectangular shape. C-clasp closure. Set of two, used for pinning bra-straps to clothing. Can be worn as brooches. 

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

Measurement:

2.5cm long

Condition: The silver is tarnished on all. One of the multi-tonal shells has an imperfection at one corner and has been discounted.