These were probably bought to New Zealand during the Gold Rush in the late 1800's by Chinese Goldminers. The case measures 6 .75" x 3.5". The pendulum and weigh pans are all made of metal. Obviously the strings are not original. Different shaped case to others that we have.
At Molloy's of Milford Antiques Centre, Auckland, New Zealand
Specialists in Pacific Islands Items, Victoriana, And a Fascinating Range of General Collectibles