Kelssek thaler
From NSWiki
The thaler (symbol: τ; code: KET) is the currency of Kelssek.
Banknotes
The current "Journey" series of banknotes was first introduced in the τ100 denomination in 2014, and fully replaced the previous "Monuments series" with the introduction of the τ5 note in 2017. The Journey series marked the switch from cotton-fibre to polymer banknotes, with features including a see-through window with a holographic national coat-of-arms and embossed Braille numerals.