Quiet Street Antiques of Bath has dated this piece to the Georgian era.
The 8-day movement strikes hours and half-on a bell, with pull repeat for the quarters on eight bells.

Finely engraved to the backplate of the movement which is an early anchor (not a conversion), whilst the dial features date aperture, "Strike/Silent" to the arch and engraved signature (Joseph Martineau Senior, London) to the silvered chapter-ring. 18ins high.
Quiet Street Antiques of Bath has dated this piece to the Georgian era.
Fine antiques at sensible prices
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