Rare Signed SLAN-LEE 1921 Custom Banker Lamp – 1960s Commission. The Story & Provenance. This is a unique “marriage” piece of exceptional quality. It was custom-commissioned in the. As a bespoke work of art, utilizing authentic, hand-selected. 1920s antique slag glass. The frame is hallmarked with the rare studio stamp. It offers the breathtaking beauty of 100-year-old glass paired with the structural integrity of 1960s handmade craftsmanship. Known colloquially as the. This banker-style light features deep, moody slag glass panels that appear nearly black when off. When illuminated, they reveal a dramatic, vibrant glow of. Deep blues and purples. The shade is accented by a central floral filigree overlay and white marbled end panels. A one-of-a-kind, handmade studio piece. Stamp on the frame. All 8 glass panels are intact with no chips or cracks. The metal base features an original. Fully functional 1960s wiring (safer than original 20s wiring). (E26 base) for the best light distribution. Please see photos for the breathtaking color transitions and the hallmarked stamp.