Representative issue study
Showa 8 (1933) Holed 10 Sen Nickel
Pure nickel provides the prewar baseline for later strategic-metal substitution.
昭和八年十銭ニッケル貨
- Date
- 昭和八年 (1933)
- Denomination
- 10 Sen
- Material
- nickel
- Issue class
- regular-circulation
Context
Historical and monetary setting
The type was short-lived before the 1938 emergency framework.
Identification
How to classify the object
Check hardness-related strike, marks, dull luster, corrosion, cleaning, mass, and hole size.
Evidence boundary
What this page does not claim
It is not the later aluminum-bronze 10 Sen.
Issue evidence
Specifications, grading, and authentication
- Mass
- 4 g
- Diameter
- 22 mm
- Hole
- 6 mm
- Edge
- plain
- Production year
- 1933
- Legal issue year
- 1933
Material-specific grading
Nickel alloys: assess strike weakness, marks, dull luster, corrosion, and cleaning.
Authentication
Verify weight, diameter, thickness, alloy, magnetism, hole, edge, date and character style, die alignment, and evidence of casting, plating, altered dates, fake patina, or modern reproduction. Do not use destructive testing.
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Related Taisho–Showa references
Evidence
Sources and scope
These links support the claims on this page. Source authority does not imply permission to republish source images.
Official specifications, first-issue years, legal-expiry dates, wartime and postwar regular types.
Open sourceImage identity and file-level reuse metadata only; historical claims are verified elsewhere.
Open source