French standing regulator clock Aime Jacob ca 1830

Precision clock with a Cuba Mahogany finer 1.97 meter high case,

Movement with central hand.
The movement runs for a year and is signed at the back " Aimé Jacob Nr 4".
On backside of the barometer is a inscription from Chevalier.
Jean Aime Jacob was born in 1793 and he was an apprentice of Abraham
Louis Brequet.
Around 1830 he starts his own workshop in Paris and specialises in
long-duration clocks.