4061. Reference : RS-2-1-4-032

Mueng Ploy, Kanchanaburi

| the students studied at Mueng Ploy (Gem mining) | Slide

4062. Reference : RS-2-1-4-033

Mueng Ploy, Kanchanaburi

| the students studied at Mueng Ploy (Gem mining) | Slide

4063. Reference : RS-2-1-4-034

Mueng Ploy, Kanchanaburi

| Mueng Ploy (Gem mining) | Slide

4064. Reference : RS-2-1-4-035

Mueng Ploy, Kanchanaburi

| the students studied at Mueng Ploy (Gem mining) | Slide

4065. Reference : RS-2-1-4-036

Mueng Ploy, Kanchanaburi

| broken | Slide

4066. Reference : RS-2-1-4-037

Mueng Ploy, Kanchanaburi

| Mueng Ploy (Gem mining) | Slide

4067. Reference : RS-2-1-5-001

Pongmanao, Lopburi

| Archaeological excavation at Pongmanao | Slide

4068. Reference : RS-2-1-5-002

Pongmanao, Lopburi

| Archaeological excavation at Pongmanao | Slide

4069. Reference : RS-2-1-5-003

Pongmanao, Lopburi

| Archaeological excavation at Pongmanao | Slide

4070. Reference : RS-2-1-5-004

Pongmanao, Lopburi

| Archaeological excavation at Pongmanao | Slide