A silver coin of Brabant issued in 1480-1481 and originally of the value of nine Myten. By the Ordonnantie of February 4, 1520, its value was reduced to six Myten and it was consequently called Seskin or Sesken. It was extensively copied in the Low Countries.
Mertens and Torfs, Geschiedenis van Antwerpen , 1847 (iii. 325) state that this coin was employed extensively as alms for mendicants.
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)