An Extremely Rare Group of Five Byzantine Glass Weights. This group consists of five Byzantine glass weights in a variety of colors, distinguished by their circular shapes and the traces of weathering and surface encrustation visible in the photographs. The collection includes pieces in shades of green, beige, and black, with raised or recessed motifs and markings of varying degrees of clarity. Period: 6th–8th century AD, a period during which glass weights were used throughout the Byzantine Empire, particularly in commercial and trade transactions. Colors and Weights: 1. First piece – upper left: Dark green glass with cream-colored and white surface encrustations. Weight: 3 g. 2. Second piece – upper right: Emerald-green glass, becoming lighter green toward the center, with beige-colored encrustations. Weight: 3 g. 3. Third piece – middle left: Beige glass with honey-brown and light brown tones, showing opacity and surface encrustations. Weight: 3 g. 4. Fourth piece – middle right: Pale aqua-green glass with a slight bluish-green hue, featuring visible markings and motifs. Weight: 3 g. 5. Fifth piece – bottom center: Black glass with a dark brown hue, displaying light-colored encrustations and pronounced surface weathering. Weight: 2 g. Total Weight of the Group: 14 g. Condition: Excellent. Acquired in 2025 from NUMIMANICA PRADOS, Spain, at the Madrid Numismatic Fair held on 27 June 2025. Provenance: The piece was previously part of a private collection in Spain, where it had been acquired from an art gallery in 1987. This rare piece is accompanied by the original purchase invoice, Certificate of Authenticity, and Spanish Export Certificate. Catawiki disclaimer: This object has been dated based on style by the seller . No further tests, such as, a TL test, analysis of pigments or radiography scans have been conducted to check the integrity of the piece.