Poland 10 Groszy Circulation Coin (Cupronickel/Steel)
Coin (Numismatic/Circulation) · None. The item exhibits the silver-grey hue of base metal alloys like cupronickel, not the warm tone of yellow gold or the brighter luster of white gold.
Purity: 0% (Not Gold). This item contains no gold. Common circulation 10 Groszy coins are minted in cupronickel (1990-2016) or steel coated with cupronickel (2017-present).

Type
Coin (Numismatic/Circulation)
Purity
0% (Not Gold). This item contains no gold. Common circulation 10 Groszy coins are minted in cupronickel (1990-2016) or steel coated with cupronickel (2017-present).
Gold Type
None. The item exhibits the silver-grey hue of base metal alloys like cupronickel, not the warm tone of yellow gold or the brighter luster of white gold.
Weight
2.51 grams. Standard weight for a Post-1990 Polish 10 Groszy coin.
Description
A standard circulation 10 Groszy coin from Poland. It features a stylized floral wreath bordering the numeral 10 and the text 'GROSZY'. While it may appear yellowish under certain indoor lighting in photographs, it is a base-metal coin used in daily transactions in the Republic of Poland.
Key Features
Stylized oak leaf wreath pattern on the reverse; large '10' over 'GROSZY'; reeded edge; magnetic (if post-2017) or non-magnetic (1990-2016).
Color & Finish
Dull silver-grey luster with a circulated matte finish. The surface shows typical oxidation/toning for cupronickel and significant wear scratches.
Hallmarks & Stamps
Denominated as '10 GROSZY'. Includes the Warsaw Mint mark (M/W monogram) usually found under the eagle's right claw on the obverse (reverse of this image).
Dimensions Estimate
16.5 mm diameter, 1.32 mm thickness.
Gemstones & Inlays
None. This is a standard government-issued fiat currency coin.
Clasp & Closure
Not applicable. The coin features a reeded edge (grooved serrations) for security and tactile identification.
Chain & Links
Not applicable. The edge is reeded (milled) to prevent metal shaving and assist in blind handling.
Craftsmanship Details
Machine-struck from hard metal dies. The strike is centered but the detail is softened by years of circulation wear.
Authentication Indicators
Visual design matches official Polish mint specifications exactly. Color and wear patterns are consistent with cupronickel, not gold. Lack of purity stamps (like .999) confirms it is not gold bullion.
Origin & Maker
Poland, Mennica Polska (Warsaw Mint). The mint is one of the oldest and most technologically advanced in the world.
Era & Period
Contemporary (Third Republic of Poland, 1990-Present). The design reflects modern heraldic motifs.
Age Estimate
Post-1990 production. The specific date would be visible on the obverse side of the coin.
Cultural Significance
Represents the monetary sovereignty of the Third Republic of Poland following the fall of communism in 1989.
Condition Notes
Circulated/Fair. The coin shows significant surface wear, minor dents on the rim, and darkening/toning in the recessed areas of the design.
Value Estimate
Face Value: 0.10 PLN (approx. $0.025 USD). No gold melt value. Numismatic value is negligible in this condition.
Care & Maintenance
No special care required as it is circulation currency. Do not clean with abrasives if keeping for a collection as this destroys numismatic value.
Similar Items
Other Polish Groszy denominations (1, 2, 5, 20, 50) and the 1 Zloty coin, which share a similar silver-toned alloy but vary in size.
Interesting Facts
The 'Grosz' name is derived from the 'Grossus', a medieval silver coin. Today, 10 Groszy is a low-value fractional unit of the Polish Zloty.