Small clocks inside glass bell cases on the mantelpiece, and longcase clocks ticking away the time as items of furniture. But these are rare examples until the 20th century.
Brooks
Chaos in the barren classrooms of the 1600s gradually restored to order over the following two centuries as boys and girls learned to read and write.
Chaos and physical punishment in the schoolrooms of the 17th and 18th centuries gave way to improvements in the 19th.
The Eclectic Light Company 