Coin Weight

Art Historical Context

This delicate glass coin weight, dating to the 9th–10th, hails from the Islamic world and exemplifies the precision of medieval trade practices. Measuring just under an inch in diameter and weighing a mere 0.1 ounces, it was designed to verify the exact weight of goldars or silver dirhams—essential for merchants navigating bustling markets from Baghdad to Cordoba. In an era before modern scales, such tools ensured fair commerce across the vast Abbasid Caliphate and beyond, reflecting Islam's emphasis on ethical trade and standardized measures rooted in Quranic principles. Crafted from glass, a favored medium for weights due to its clarity, durability, and ability to be molded with remarkable accuracy, this artifact showcases advanced artisanal techniques. Glassmaking flourished in the Islamic lands, where artisans perfected formulas for stable, non-corroding objects. Its smooth, disc-like form allowed for precise stacking and calibration, underscoring the era's sophisticated metrology. Today, housed in the Metropolitan Museum of Art's Islamic Art department (acquired via the Rogers Fund in 1908), this unassuming object opens a window into a thriving economy and culture of innovation, reminding us how everyday tools shaped history.