Vintage Industrial Gold-Plated Brass Modular Slide Component
Hardware / Sliding Mechanism Component · Yellow Gold plating over a base metal alloy (likely Brass or Bronze). The color is a dull, industrial yellow with greenish-brown undertones.
Purity: Gold-Plated (Estimated <1% gold content). The surface displays significant brassing and oxidation typical of gold-plated base metals rather than solid gold.

Type
Hardware / Sliding Mechanism Component
Purity
Gold-Plated (Estimated <1% gold content). The surface displays significant brassing and oxidation typical of gold-plated base metals rather than solid gold.
Gold Type
Yellow Gold plating over a base metal alloy (likely Brass or Bronze). The color is a dull, industrial yellow with greenish-brown undertones.
Weight
15-25 grams. Based on the perceived density and typical industrial dimensions, the item appears to be a heavy base metal with a thin decorative coating.
Description
A rectangular, gold-toned metal component featuring a longitudinal groove and a central securing pin. While appearing 'gold' at first glance, the lack of luster and presence of dark oxidation indicates a gold-plated brass object, likely a sliding track element from a piece of vintage office equipment or architectural hardware.
Key Features
Central guide rail, recessed slot at the base, and a raised positioning nub on the curved spine. These are functional diagnostic traits of a mechanical slider.
Color & Finish
Mustard yellow with a matte, aged patina. The finish is industrial rather than jewelry-grade, showing significant surface oxidation and scratches.
Hallmarks & Stamps
None visible in the image. The absence of purity hallmarks (e.g., 14K, 585) on a piece of this size strongly suggests a non-precious industrial origin.
Dimensions Estimate
Approx. 40mm x 10mm x 8mm. It appears to be a standard-sized mechanical slider or rail component.
Gemstones & Inlays
None. This is a purely functional mechanical object without decorative stones or artistic inlays.
Clasp & Closure
N/A. The item features a slot at the bottom and a central pin/dimple suggesting a friction-fit or sliding track engagement.
Chain & Links
N/A. The structure is a rigid, rectangular hollow-cast or machined block with a curved interior track.
Craftsmanship Details
Machine-milled or heavy-cast construction. The soldering is not visible, suggesting it was formed from a single piece of base metal before being electroplated.
Authentication Indicators
Negative for solid gold. Red flags include uneven color (greenish tint), visible oxidation spots (verdigris), surface flaking, and a lack of official fineness stamps.
Origin & Maker
Unknown. It lacks brand identification, though the machining style suggests mass production from an industrial manufacturing plant.
Era & Period
Mid-20th Century Industrial (c. 1950s-1970s). The utilitarian design and type of wear are consistent with vintage hardware or specialized tool parts.
Age Estimate
40-60 years old. The depth of the oxidation and the specific wear patterns on the edges suggest significant age and prior mechanical use.
Cultural Significance
Represents the 'Golden Age' of mechanical engineering where even functional hardware was often finished with aesthetic coatings to match high-end interior decor.
Condition Notes
Fair. The plating is worn through at the edges ('brassing'), and there are numerous small impact marks and scratches across the surface. The internal track shows signs of friction wear.
Value Estimate
Negligible ($1 - $5). The value is primarily as a scrap base metal or a replacement part for a specific vintage machine. It has no significant precious metal melt value.
Care & Maintenance
Do not use jewelry cleaners or abrasives as they will remove the remaining thin gold plating. Clean with a soft, dry cloth only. Store in a dry environment to prevent further brass oxidation.
Similar Items
Often confused with gold-plated lighter sleeves, Matchbox covers, or specialized pen components, but differs due to its thicker walls and specific sliding tracks.
Interesting Facts
Industrial equipment in the mid-20th century was occasionally gold-plated or coated in 'gold-wash' to provide corrosion resistance in specific high-end electronic or mechanical environments.