Genuine French antique ‘grandfather’ clocks strike the hour twice, two minutes apart from each other.
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In case you’re wondering: this is so that, in the large houses that people who could afford grandfather clocks had, if someone heard the clock chime ‘one’ then could move closer and listen for the start of the repetition to make sure that they hadn’t just heard the end of the clock striking ‘two’.

I don’t think Quiet Street Antiques has any French grandfather clocks at the moment, but if you find yourself in Bath you should drop in and say hello to Kerry, it turns out antiques are fascinating!