Here we have an original antique Grandfather / Longcase Clock clock lock and key which is in working order. 

This is a genuine old lock and key

Approximate dimensions are : cm high 5cm x cm wide 2.8 cm x 0.8 cm deep

Approximate length to pin is : 1.2 cm

CONDITION: Knocks and marks commensurate with age, but overall in good antique condition and working with key. 

Ref : lock r. 13