This Chanel gem is circa 1980s. 

Specifications:
Size (Inch)W 8.3 " x H 5.1 " x D 2.0 "
Shoulder Drop. 16.9 "
Size (CM)W 21.0 x H 13.0 x D 5.0 cm
Shoulder Drop. 43 cm
Material: Lambskin and Leather