Lesotho Post Office has participated at the International Stamp Exhibition , Phila Korea 1994. They issued 4 piece stamps series are depicted frog species.
The frog species are Aquatic River Frog (Rana vertebralis), Bubbling Kassina (Kassian senegalensis), Guttural Toad (Duto guttural), Common River Frog (Rana angolensis).
