Antique Clock Pendulum Bob with Nickel Silver Casing
Clock Component / Horological Part · Unknown clock manufacturer; typically produced by major 19th-century clock companies like Seth Thomas, Ansonia, or Waterbury.
Pattern: Standard Industrial Clock Component; utilitarian design for friction-fit or screw-adjustment pendulums.
Type
Clock Component / Horological Part
Maker
Unknown clock manufacturer; typically produced by major 19th-century clock companies like Seth Thomas, Ansonia, or Waterbury.
Material
Nickel Silver (German Silver) or Chrome/Nickel-plated brass casing over a heavy lead or iron core; the visible rod is iron/steel.
Dimensions
Approximately 3 to 4 inches in diameter; weighted significantly (200-500g) to maintain harmonic oscillation.
Description
This is a circular pendulum bob from a wall or mantel clock. While it has a silver-colored metallic sheen, it is a functional horological component rather than a piece of sterling silver hollowware. The disc provides the mass necessary for the pendulum to swing at a consistent rate, with the top screw allowing for fine-tuning of the clock's accuracy.
Key Features
Circular convex form, central weight, top-mounted knurled adjustment nut, and a flat iron supporting rod.
Material & Composition
Nickel Silver (German Silver) or Chrome/Nickel-plated brass casing over a heavy lead or iron core; the visible rod is iron/steel.
Finish & Decoration
Polished metallic surface, likely originally nickel-plated for a bright mirror finish, now showing significant oxidation and surface scratching.
Hallmarks & Stamps
No visible hallmarks or silver purity stamps; typical for clock parts which are industrial rather than decorative silver.
Construction Details
Machine-pressed thin metal 'skin' or shell wrapped around a cast heavy metal core; top feature includes a knurled brass or steel adjustment nut.
Functional Features
Threaded top adjustment for regulating the speed of the clock; the bob is designed to slide up or down the pendulum rod.
Handle & Grip Details
Mechanical iron rod at the base; knurled adjustment screw at the top for fingertip grip during time regulation.
Craftsmanship Details
Functional industrial craftsmanship; focused on weight distribution and balance rather than artistic silversmithing.
Authentication Indicators
Lack of sterling/hallmarks and the presence of a rusted iron rod confirm this is an industrial clock part, not a silver decorative item.
Origin & Manufacturing
Likely United States or Germany; mass-produced in a horological factory using die-stamping and casting.
Era & Period
Victorian to early 20th century (c. 1880-1920) based on the industrial manufacturing style and knurling pattern.
Age Estimate
Circa 1890-1910; based on the wear on the iron rod and the type of knurled nut present.
Cultural Significance
Represents the mass production of precision timekeeping instruments during the late Industrial Revolution.
Condition Notes
Poor to Fair; significant surface scratching, heavy oxidation on the iron rod, and possible denting on the outer shell. Surface tarnish suggests a non-precious base metal.
Value Estimate
$10 - $25 USD; primarily of value to clock restorers or as a decorative steampunk artifact.
Care & Maintenance
Clean with a dry cloth; do not use silver dip as it may damage the plating or cause the internal iron core to rust further.
Similar Pieces
Wall clock pendulums by Seth Thomas or Howard Miller; often confused with hand mirrors or magnifying glasses by laypeople.
Interesting Facts
In horology, raising the bob makes the clock run faster, while lowering it makes it run slower; this is known as the 'law of the pendulum' established by Galileo.