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<p>[QUOTE=&quot;John Fariss, post: 9424213, member: 80619&quot;]Mercury filled pendulums were used on many nice &quot;crystal regulators&quot; like this.&nbsp; Others had metal tubes inside the glass to look like mercury pendulums.&nbsp; Some were US made, others in France.&nbsp; Like an earlier comment, I suspect this one is French.&nbsp; A close up of the circular mark near the bottom of the movement probably reveals the trademark of the manufacturer, and very possibly the name.&nbsp; That the key is English means little, as keys are often replaced.[/QUOTE]</p><p><br /></p>

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