Thank you for viewing. This item was purchased as a single, in-stock item many years ago. Therefore, the manufacturer is uncertain, but I believe it was probably Uroboros. I bought it intending to use it for a Tiffany lamp, but I never used it, so I'm offering it to someone who needs it. When light passes through it, it's a beautiful glass with a complex mix of purple, red, and orange. Shipping will be via Yu-Packet Post. I will carefully pack it to prevent breakage, but there is a possibility of cracks or chips occurring during shipping. Due to the nature of the item, we cannot accept returns in such cases. However, if such a problem occurs, we would appreciate it if you could let us know to prevent recurrence. Please purchase only if you understand this. I will clean it again before shipping, but please understand that there may be stains or writing marks that cannot be removed due to long-term storage. If you are concerned about fine details such as streaks, air bubbles, small scratches, or stains from the manufacturing process, please refrain from purchasing. Also, please consider that there may be differences in color due to your computer environment or smartphone, and errors in size and other numerical values. #Uroboros #StainedGlass #GlassSheet #Tiffany