This is a unique symbol. It suggests an individual. To gain insight into its meaning, we need more details. Perhaps it is associated with specific system. Looking into the origin of this identifier would be important. Thomo Truc Tiep Da Ga 2023 Thoi gian den tai/vào/cho đến ngay thang/ngày tháng/ngày/ 15/mười lăm/năm mươi l�