จดหมาย, ตัวอักษร, จารึก, คำ, พื้นหลังสีขาว, สีดำ, สัญลักษณ์, โรงเรียน, ขาว, บนพื้นหลังสีขาว, เครื่องหมาย
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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