Thank you for viewing. The manufacturer is unknown as it was made many years ago. I bought it intending to use it for a lamp, but I didn't use it, so I will sell it to someone who needs it. It is a beautiful deep purple glass that looks stunning when light passes through it. Shipping will be via Takkyubin Compact. 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 so we can prevent it from happening again. 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. Please refrain from purchasing if you are concerned about fine details such as streaks, air bubbles, scratches, or stains that occur during the manufacturing process. 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. #Tiffany #StainedGlass #PlateGlass