Vintage Industrial Brass or Bakelite Edison Bulb Socket
Electrical Hardware / Lighting Component · Unknown Electrical Manufacturer; features a distinct 'EM' or Stylized 'S' logo in a square frame. This is not a silver manufacturer.
Pattern: Utility Grade Industrial Socket, likely a bayonet-style or standard screw-in shell.
Type
Electrical Hardware / Lighting Component
Maker
Unknown Electrical Manufacturer; features a distinct 'EM' or Stylized 'S' logo in a square frame. This is not a silver manufacturer.
Material
Brass and/or copper alloy with a verdigris patina; does not contain silver. Components include copper wiring with blue and brown insulation.
Dimensions
Standard bulb socket dimensions, approximately 2-3 inches in height; weight approximately 50-100 grams depending on internal ceramic/metal content.
Description
This is a utilitarian electrical light socket used in industrial or residential wiring. It is made of base metals like brass and shows significant grime and oxidation from a basement or crawlspace environment. It has no relation to silver flatware or hollowware.
Key Features
Industrial logo on the base; knurled metal collar; L-shaped notch for a bayonet-style bulb fitting; standard colored insulation on the wires.
Material & Composition
Brass and/or copper alloy with a verdigris patina; does not contain silver. Components include copper wiring with blue and brown insulation.
Finish & Decoration
Industrial dull finish with oxidation and grease/dust accumulation; features knurled edges for grip during assembly; utilitarian design.
Hallmarks & Stamps
The item lacks silver hallmarks (purity, assay, date). It features an industrial manufacturer's logo and a bayonet notch.
Construction Details
Mass-produced industrial assembly; die-stamped outer shell with a knurled collar; hand-wired during installation after manufacture.
Functional Features
Electrical conductivity components; bayonet-style twist lock or screw-recess for light bulb; wire entry points at the top for electrical supply.
Handle & Grip Details
None; features a knurled ring meant for assembly grip, not a handle.
Craftsmanship Details
Industrial machine-manufactured; functional and robust but lacking the refinement or hand-finishing of silversmithing.
Authentication Indicators
Complete absence of silver hallmarks; presence of electrical wires and industrial stamps confirms this is hardware, not a collectible silver object.
Origin & Manufacturing
Likely Europe or China based on the wire color coding (Blue/Brown/Green-Yellow); mass-manufactured in a factory setting.
Era & Period
Modern Industrial (ca. 1950s to present), characterized by standard electrical safety color coding on wires (Blue/Brown for Europe/International).
Age Estimate
Late 20th century to modern day (1970 - present) based on the plastic/polymer wire insulation.
Cultural Significance
Represents standard 20th-century electrification and industrial hardware evolution.
Condition Notes
Poor; the item is covered in dust, cobwebs, and grease. The wires are exposed and potentially brittle. The surface is heavily oxidized with no precious metal value.
Value Estimate
Negligible; secondary market value of $1-$5 as a used part, or scrap metal value for the brass content.
Care & Maintenance
DANGER: Do not clean while connected to power. This is an electrical component, not a decorative silver item. If used for lighting, it should be checked by an electrician.
Similar Pieces
Leviton sockets, General Electric industrial fixtures, and other hardware-grade lighting components.
Interesting Facts
The blue and brown wire colors signify Neutral and Live wires under the International Electrotechnical Commission (IEC) standards common in Europe.