Lamp made of relief glass Maya Maytoni in two colors and three sizes
Size: 8 × 40 × 7 cm;
8 × 60 × 7 cm;
8 × 80 × 7 cm
https://maytoni.ru/catalog/decorative/nastennye-svetilniki/p091wl-l13g3k/ 
The glass relief is made using a procedural map.