Silver Transit Medal · Workshop Patina is a curated numismatic piece prepared for the Collectorium T launch selection. The piece imagines a small civic issue in which typography, relief and edge treatment communicate authority without imitating a real issuer.

Its visual identity combines struck copper alloy with a reeded edge, a aged copper, dark brown and verdigris palette, and a round token with a shallow relief and reeded rim. Recorded display dimensions are 41 mm diameter. The gallery documents honest age-consistent wear, photographed without cosmetic concealment; one invented geometric maker symbol; no readable lettering. Each image is a separately composed camera view of the same presentation piece. This presentation record is informational only; ownership, maker attribution, certification, scarcity and provenance verification are outside its scope.