In Captain America: The First Avenger (2011), Howard Stark jokes that 'Hydra won't attack you with pocket knives'. Towards the end of the movie, a Hydra agent does just that. : r/MovieDetails
Captain America OTF Knife D/A Auto Switchblade *Limited Edtition* – Slash2Gash
Captain America Hero Knife From Way Of The Warrior
SNEAK PEEK : Knife Fight Between 'Captain America' and 'The Winter Soldier'