Mass-Produced Nickel-Plated Brass House and Lock Keys
Functional Utilitarian Object (Non-Silverware) · Hitomi (Japanese lock manufacturer) and various hardware brands
Pattern: Standard Y-Series / Dimple Key Pattern (Contemporary Utility)
Type
Functional Utilitarian Object (Non-Silverware)
Maker
Hitomi (Japanese lock manufacturer) and various hardware brands
Material
Nickel-plated brass or steel; contains no sterling silver or precious metal content.
Dimensions
Standard key sizing, approx. 4-6cm length, weighing 6-12 grams per unit.
Description
A set of common household and security keys on a split ring. These are industrial utility items designed for mechanical access rather than decorative or collectible silver value.
Key Features
Milled bitting patterns for security; 'Hitomi' manufacturer stamp; blue anodized carabiner clip.
Material & Composition
Nickel-plated brass or steel; contains no sterling silver or precious metal content.
Finish & Decoration
Mirror-polished nickel plating over industrial base metal; mechanical milling and stamped branding.
Hallmarks & Stamps
Branding stamp 'HITOMI' on the bow; no silver purity hallmarks (such as 925 or Lion Passant) are present.
Construction Details
Precision machine-milled teeth and die-stamped bows for industrial mass production.
Functional Features
Incised bitting for lock tumbler activation; split-ring hole for transport; carabiner attachment.
Handle & Grip Details
Flat-head bows with stamped textures for tactile grip; attached via a standard steel split ring to a blue anodized aluminum carabiner.
Craftsmanship Details
Machine-manufactured with tight tolerances for functional locking mechanisms; lacks hand-wrought artisan detail.
Authentication Indicators
Lack of silver hallmarks; presence of industrial plating wear showing brassy undertones; clear 'Hitomi' commercial mark.
Origin & Manufacturing
Likely Japan or Southeast Asia given the 'Hitomi' brand association; factory-made.
Era & Period
Modern/Contemporary Era (late 20th - early 21st century industrial design).
Age Estimate
Contemporary (produced within the last 5-20 years).
Cultural Significance
A representation of modern security and personal property management in the urban industrial age.
Condition Notes
Fair to Good; significant surface abrasions, minor oxidized spots on the split ring, and visible wear on the carabiner finish.
Value Estimate
Nominal/Intangible value ($1-$5 for replacement blanks); no scrap silver value.
Care & Maintenance
Keep dry to prevent oxidation of the split ring; apply graphite powder to locks for maintenance; no silver polish required.
Similar Pieces
Standard Schlage, Kwikset, or Yale brand keys; distinguished by bitting profile and brand logo.
Interesting Facts
The 'Hitomi' brand is often associated with specialized cabinet and locker locks used in Japanese industrial applications.