Thailand
| Country: | Thailand |
| Type: | Postage stamps |
| Series: | International Letter Writing Week 1992 |
| Nominal: | 3 ฿ |
| Year: | 1992 |
| Size: | 48 x 30 mm |
| Perforation: | comb 14½ x 14 |
| Mintage: | 3,000,000 |
International Letter Writing Week 1992
 Elegance Coral (Catalaphyllia jardinei) 0.13$ |  Stony Coral (Porites lutea) |  Orange Cup Coral (Tubastraea coccinea) 0.14$ |  Knob Coral (Favia pallida) 0.15$ |