In the past few years, we have covered plenty of unique clocks here. The Coin Clock by Arrow Industries is also worth a look. It uses an electric motor to move a bunch of pennies to display time. You can insert the coins from top and remove them from the side. The Coin Clock can be put together and taken apart easily for repair.
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Coin Clock by Arrow Industries from the 1980s ► Gadgetify
The Coin Clock was built in the early 1980s. You can find out more about it here.
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