Mechanical Silver-Tone Industrial Disc Part
Industrial Machinery Hardware · Unidentified Industrial Manufacturer; likely a 20th-century technical engineering firm rather than a traditional silversmith.
Pattern: Non-decorative; functional industrial design. No decorative collection or pattern name is applicable.
Type
Industrial Machinery Hardware
Maker
Unidentified Industrial Manufacturer; likely a 20th-century technical engineering firm rather than a traditional silversmith.
Material
Likely Aluminum, Stainless Steel, or Nickel-plated alloy. The surface exhibits tool marks and oxidation patterns inconsistent with fine silver.
Dimensions
Estimated 4-6 inches in diameter. Weight likely varies significantly based on base metal density (aluminum vs. steel).
Description
A flat, circular metallic plate with a central hole and a series of raised, regularly spaced protrusions or weld points across the surface. This is a functional hardware piece, not a decorative silver object.
Key Features
Concentric machining rings, irregular spot-welded nibs, central bore, and industrial inspector stamps.
Material & Composition
Likely Aluminum, Stainless Steel, or Nickel-plated alloy. The surface exhibits tool marks and oxidation patterns inconsistent with fine silver.
Finish & Decoration
Machined finish with concentric circular tool marks (turning). No aesthetic decoration present; visible protrusions are functional welds or rivets.
Hallmarks & Stamps
No precious metal hallmarks (no lion passant, 925, or maker's marks). A small 'D' stamp is visible, likely an inspector's mark or assembly code.
Construction Details
Machine-turned circular disc with a central bored hole. Protrusions appear to be spot-welded or press-fit pins for mechanical engagement.
Functional Features
Central aperture for a shaft/axle; raised nibs likely serve as spacers, friction plates, or alignment teeth for a larger assembly.
Handle & Grip Details
None; this is an internal component of a larger mechanical device.
Craftsmanship Details
Precision-machined but utilitarian. The 'nibs' are applied roughly, suggesting a component where aesthetic finish was irrelevant.
Authentication Indicators
Lack of hallmark, presence of industrial tool marks, and cold-rolled appearance indicate this is base metal, not sterling silver.
Origin & Manufacturing
Likely factory-made in a country with high industrial output (USA, Germany, Japan) for automotive or appliance use.
Era & Period
Modern Industrial Era (Mid-to-late 20th Century). Shows signs of mass-production machining techniques.
Age Estimate
Circa 1950–1990. The oxidation and machining style suggest mid-to-late 20th-century manufacture.
Cultural Significance
Represents the shift from handmade silver craftsmanship to standardized industrial component manufacturing.
Condition Notes
Fair to Good. Shows surface scratches, heavy oxidation/graying, and possible structural wear around the perimeter edges.
Value Estimate
Negligible; scrap metal value for the specific base metal (aluminum or steel). No collector value for silver enthusiasts.
Care & Maintenance
Clean with degreaser if being used for mechanical purposes; no silver polish should be applied as it is not precious metal.
Similar Pieces
Washers, clutch plates, spacer discs, or timing wheels.
Interesting Facts
Items like this are frequently mistaken for 'silver' by novices due to their luster, but their utility is purely mechanical.