Q: What is the value of an old factory "clocking-in clock"? It is about three feet tall, with a round dial and a brass pendulum, and a glazed door. There is a slot at the base to insert a card.

Mr W

A. Time clocks -- often made by a firm called the National Time Recorder Company -- were common in many factories and offices for much of the 20th century, and some are still used today. Redundant examples find their way onto the antiques market and typically fetch about £150 when sold. Of course, not everyone likes them , as they are a bit bulky for domestic use and look odd on the living-room wall, but some people do find them interesting and even collect different examples.