This unique paperweight features a captivating bubble effect in black hand-blown glass, making it a stunning decorative piece for any collection. The glossy finish and original production style of art glass add to its charm. The paperweight is unmarked, and its era and country of manufacture are unknown. However, its quality and decorative features are undeniable. Perfect for anyone who appreciates art glass and unique decorative items. This paperweight is a must-have for collectors and enthusiasts alike.