France, Paris. Prize medal on the occasion of the Universal Exhibition, 1867, awarded to Małecki & Szreder Piano Manufacturer, Poland, text on medal: "EXPOSITION UNIVERSELLE DE MDCCCLXVII A PARIS MAŁECKI & SZREDER, single sided, stamped bronze plate silver plated and filled with lead 48 mm, weight 42,5 g., Condition aVF, patina
Probably a duplicate made by the owners, winners of the award for selected and appreciated factory employees, or for signing the piano.