Its S24(t) a german contract bayonet that was produced in Zbrojovka Brno, plant Brno, that could be used on all Mauser 98 rifles with standart Mauser 98 bayonet adapter, also on Gew98,Kar98a, Kar98k, Gew98/40, czechoslovak Vz.23, Vz.24, yugoslavian M24, polish K29, G98 etc. Rifles were not accepted to bayonet, mostly refrubishment were done by accepting bayonet to rifles.