Swiss Francs.
Every county has currency.
Swaziland has its own currency called LiLangeni (singular) / Emalangeni (plural) abbreviated, SZL.
It is units and cents. Swaziland is a member of the Rand Monetary Area whose members are linked to the South African currency, the RAND (R). Members of the Rand monetary area are Lesotho, Swaziland and South Africa.
e.g. SZL 10.12 --- Ten Emalangeni and 12 cents