I'll go back a few years to the early 1800's when the weight driven Banjo clock was first developed and patented in 1802 by Simon Willard.
It's an all American design that gave people a less expensive choice to the floor standing tall clocks of the day. They sold for around 45 dollars at first until later competition brought the price down. A clock you could just hang on the wall, what a novel idea.
These were first built in small shops/sheds in the Boston area with a young apprentice as a helper. You had to be a master of a file back then to cut the teeth in it's brass movement.
These clocks continue to run today with simple maintenance.
In later years mass production was developed in this industry.
This is a pic of a reproduction S. Willard banjo timepiece made by Elmer Stennes circa 1970.
