1923  2x20 Groszy (Nickel/Zinc) / 2x10 Groszy (Nickel/Zinc) - Poland - (internal ref: 181)
20 Groszy:  Nickel - 3grs - 20mm Diameter - (Y12 - N4116) - Level: XF
20 Groszy:  Zinc - 2,97grs - 20mm Diameter - (Y37 - N2073) - Level: XF
10 Groszy:  Nickel - 2grs - 17,6mm Diameter - (Y11 - N4115) - Level: XF/AU
10 Groszy:  Zinc - 2grs - 17,6mm Diameter - (Y36 - N9811) - Level: VF

This 1923 Polish set of 20 and 10 Groszy coins is at XF level

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