Dating antique clocks

The two types can be distinguished from the front of the clock by the position of the regulating square. 1901*) has the regulating square above the numeral "12".

Adamantine veneer was made in black and white, and in colored patterns such as wood grain, onyx and marble. Seth Thomas Clock Company purchased the right to use the Adamantine veneer in 1881.The Junghans Company absorbed Becker, Lenzkirch, Hamburg American, etc.into a clock company that continues in business to this day.These clocks have become known to collectors as "Black Mantel Clocks", and were popular from 1880 to 1931.Seth Thomas made clocks in marble cases for a short time, from 1887 to ca. They also made clocks in iron cases finished in black enamel, from 1892 to ca. Seth Thomas is well known for their "Adamantine" black mantel clocks, which were made starting in 1882.

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