Microcosm was a unique clock made by Henry Bridges of Waltham Abbey, England. It stood 10-12 feet high, and six across the base, it toured Great Britain, North America and the West Indies as a visual and musical entertainment as well as demonstrating astronomical movements.
It was first advertised for exhibition in 1733, but it is also claimed that Sir Isaac Newton, who died in 1727 checked the mechanism. Several prints survive of the microcosm including one of 1734 showing Newton and Bridges. When Henry Bridges died in 1754 he left the clock to his 3 youngest children to be sold. It is unclear when the clock left the Bridges family but it continued touring till 1775 when it vanished. The astronomical clock was found in Paris about 1919 and is now in the British Museum.
When on tour, entrance was a massive 1s entrance, and souvenir pamphlets were also sold. It had 4 parts, from the top:
The machine played mechanical music but the organ could also be played by hand. The music was mostly new, some composed especially for it.
As John R Milburn stated ‘There were other broadly similar though less comprehensive devices in existence in the first half of the eighteenth century… The importance of Bridges’ ‘Microcosm’, however, lies in the nature of its displays (combining automated pictures to attract the multitude with educational astronomical models) and the widespread publicity that accompanied it on its travels’.