Vintage Marine Chronometer Bowl Gimbal Mount Plate. This is an unfinished gimbal ring mount plate, for a 2 day, probably older pattern Mercer, Marine chronometer bowl.
Vintage Thomas Mercer Marine Chronometer Bowl
Vintage Marine Chronometer Clock, Quartz, Nautical, Navigation, Camon / Polaris
Vintage Hamilton 21 Marine Chronometer Gimbal Ring
