Two-Day Marine Chronometer - GUB Glashütte/SA VEB Glashütter Uhrenbetriebe Marine Chronometer - Brass, Mahogany - 1940-1950
Industrial equipment - Everett Edgcumbe “Synclock” Time / Frequency Difference Meter - United Kingdom - Synclock Difference Meter
Clock - Thomas Russel & Sons Ltd. 30 & 32 Slaterstreet Liverpool. - Wood, Brass - 1910-1920 - Ship's chronometer with outer case