Description Medieval Bronze Ring with Blue Glass Setting Circa 14th–16th Century AD The bronze has developed a natural green-and-brown patina over long burial, against which the glass inset stands out vividly, retaining its rich blue tone. The workmanship is consistent with the bronze-ring production of provincial workshops across the Roman Empire. Dimensions: 22.85 mm (height) × 8.35 mm (width) · Diameter ≈ 22 mm Weight: 2 g Condition: Good very fine; commensurate with age, with natural patina (as shown in the photographs) Provenance: SPQR Collection – Auction 12 (Ancient, Islamic, Medieval and World Coins, Antiquities), Lot 1323 · biddr. Sale: 5 March 2026 · Invoice No. 2264. Seller: SPQR Collection Sp. z o.o., Krucza 12/22, 00-526 Warsaw, Poland.