Electric locomotive  type  121   (ex. E469.1)  was produced at  Škoda Plzeň factory  as successor of  first  el. loco  E499.0 - (called Bobina - from BoBo truck type).  85pcs was produced in 1960-61.    Loco was  designed mainly for freigth  train transport, due to max speed  90kmph and higher pull force.  In  90-th years  all was shifted  belong  ČD czech railway corp. During 1995-2012 most of them was scraped and now only last locos 121 are used.