Citation(s) from the GunPolicy.org literature library
Kramer, Katherine. 2001 ‘Identification and Marking.’ Legal Controls on Small Arms and Light Weapons in South East Asia; Occasional Paper No. 3, p. 10. Geneva: Small Arms Survey, the Graduate Institute of International and Development Studies, Geneva and Nonviolence International South East Asia. 1 July
Identification and Marking
If a unique mark is not found, the licensing authority is entitled to make one that is permanent but does not damage the arm itself. Thailand further stipulates that all firearms must bear a mark indicating the province of the licensee and a registration number.