ARCHIBALD
KNOX 1864-1933
Rare Liberty & Co Waist Clasp 
Silver & enamel
Length: 12.1cm Width: 4.7cm
Marked: 'L & Co'
Birmingham 1905.
Fitted case.
Literature:
cf. Liberty Jewellery sketch book, page 180
Model number 10021
Archibald Knox, Stephen A. Martin, 2001, page 19