This represents a unique symbol. It could indicate a product. To decipher its meaning, we must additional information. Perhaps it refers to a unique file. Looking into the where it came from of this symbol would be beneficial. Thomo Truc Tiep Da Ga 2023 Thoi gian den tai/vào/cho đến ngay thang/ngày tháng/ngày/ 15/mười lăm/năm