This is a beer glass from Kagami Crystal, a tableware brand that supplies 100% of its crystal glassware to the Imperial Household Agency, the Prime Minister's Office, and Japanese embassies around the world.The side of the glass features a design of ears of wheat (barley spikes), which symbolize "wealth," "prosperity," "hope," and "abundance," making it a highly auspicious and lucky motif. This item was once distributed by Sato Pharmaceutical as a gift to distributors and customers, and it bears the engraved mark of "Sato-chan" (the company's elephant mascot) on the bottom of the glass. Being an older item, it is quite rare and difficult to obtain nowadays.