Material: Likely a brass-plated base metal or bronze-toned alloy.
Wear: Significant surface oxidation and "pitting" consistent with age.
Patina: There is visible darkening and loss of the original luster, especially on the back side and around the edges.
Attachment: Features a circular hanging loop (integral to the mold) for a ribbon or neck chain, which is currently missing.
This item is a commemorative sports medal from Poland, specifically awarded for an amateur basketball competition. Based on the inscriptions, here is a breakdown of what this piece represents:
Sport: Basketball (indicated by the ball graphic and the word Koszykówki).
League: WRBA (Warszawska Amatorska Liga Koszykówki) — This is the Warsaw Amateur Basketball League, one of the largest and oldest amateur leagues in Poland.
Event Date: June 16, 2007.
Edition: 25th Edition (25 edycja).
The text is in Polish. Here is the translation for your listing:
Front Side:
25 edycja: 25th Edition.
16.06.2007: The date of the final or award ceremony.
WRBA: The league acronym (Warsaw Amateur Basketball League).
Amatorska Liga Koszykówki: Amateur Basketball League.
Back Side:
Mistrz 3. Ligi: 3rd League Champion. This indicates the medal was awarded to the first-place team of the "3rd Division" within that league's hierarchy.