Shortly after the Pistol Licensing Act 1927 was passed, a visiting sailor used a cutthroat razor to defend himself from attackers. As a result, razors became a default weapon due to its ease of purchase from barbers shops for a few pence, its ease of concealment (hidden inside a piece of cork), and its use as an instrument of intimidation and threatened or actual mutilation, physical impairment or murder against one's adversaries, prey or hostile spouses.
Shortly after the Pistol Licensing Act 1927 was passed, a sailor used a stiletto to protect himself from attackers. As a result, razors became common weapons because they were readily available at barbershops for a few pence, easily concealed (hidden in cork), and employed as instruments of intimidation or physical harm against adversaries, targets, or hostile partners.