Equal
Equal Temperament (1911)		 Merrick
Merrick (1811)		 Graupner
Graupner (1819)		 HummelEB
Hummel Equal-Beating (1829)		 Viennese
Viennese (1829)
JousseQE
Jousse Quasi-Equal (1832)		 Becket
Becket (1840)		 MarshQE
Marsh Quasi-Equal (1840)		 BestFactory
Best Factory (1840)		 Ellis75
Ellis (1875)
Ellis85
Ellis (1885)		 Broadwood
Broadwood (1885)		 Wicks
Wicks (1887)		 Pyle
Pyle (1906)