Clive Payne Antiques has dated this piece to the 18th Century.

The good quality 8 day movement with 5 ringed and knobbed pillars.
Thomas Cartwright is recorded born 1679 apprenticed to Christopher Gould in 1693, started taking his own apprentices in 1705 and died in 1741. Working in watches, and longcase clocks, signed “Thomas Cartwright London”, A very good early maker who was CLOCKMAKER TO QUEEN ANNE AND GEORGE 1ST.
From a Private Cotswold collection
Size: 20.00? wide X 10.34? deep X 101.00? tall
Clive Payne Antiques has dated this piece to the 18th Century.
Leading specialist dealer in mason's ironstone china and dealer in period english furniture.
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