1 Grosz Y#923 1.6400 g., Brass plated steel, 15.5 mm. Obv: Image of the eagle established as the state emblem of the Republic of Poland. Below the eagle, in a semi-circle, from left to right, the inscription: RZECZPOSPOLITA POLSKA. Within the rim, stylised rings, intersecting in the top part, split underneath by the year of issue. Below the eagle, on the right-hand side, the mint mark. Rev: A large digit: 1, below – a horizontal inscription: GROSZ, above the digit – a twig with an oak leaf. Edge: milled. Obv. designer: Sebastian Mikołajczak Rev. designer: Ewa Tyc-Karpińska