The bell and clock were added to the building in 1856.
It was 1825 before the bell and clock were added.
In the 16th century an outside staircase and a clock were added.
In 1662 a clock was added, the structure reaching 90 meters.
The tower and the clock at the western end were added in 1838.
The clock was not added to the building until 1996.
Both the clock and bell were added in 1872, just one year after the original tower was built.
The clock and bell were added later at a cost of about $1,500.
A clock was added to the tower at a later date.
A clock was added to the tower in the early 17th century.