« previous 3 clocks exhibited by California Academy of Sciences
type of clock  sub type duration trains bell or gong escapement clockmaker country date made marriage? weight or spring? pendulum in cm picture from web picture owner conservator
1 marine chronometer don't know 8 day going platform Thomas Earnshaw England 30-06-1806 original spring owner conservator
2 table clock pendule religieuse 8 day going bell don't know Nicolas Hanet France 30-06-1675 original spring owner conservator
3 wall clock lantern 30 hour going + striking bell don't know England 30-06-1670 original weight owner conservator