Job Lot of 15 Antique Edwardian Manganese Glow Glasses 15 hand-blown Pall Mall etched sherry/port glasses. High manganese content—boasts a highly vibrant, intense neon green fluorescence under a 365nm UV light (fainter stem glow under 395nm). Beautiful evidence of early mouth-blown craftsmanship, showing unique variations in height, weight, and shape. 11 are in pristine antique condition (perfect for use!). 4 have minor flea bites making them unsuitable for drinking, but the damage is totally unnoticeable under UV light, making them perfect for display.