Received from a relative who is a collector. As this is a used item, please purchase only if you understand the following description and refer to the photos. *We cannot definitively determine the manufacturer, so please judge based on the information provided. AI Summary The product shown in the image is believed to be a crystal glass tumbler from **HOYA CRYSTAL**. The material is crystal glass. The bottom features a complex cut glass pattern, and the upper part is characterized by delicate engravings with plant motifs (such as ears of wheat). HOYA's crystal business ended in March 2009, so new products are no longer officially sold, but they may be found in sets on the used market or online stores. Models are often around 11cm to 12cm in height.