What season are Bloody Gangster and Duchess of Russia?

In the third season of Peaky Blinders, in the fourth episode, the countess tells that Tommy benefited a lot after listening to it. On the spot, he ordered his brother John to puncture the countess's tire because there was no place to repair the car that day.

The play tells the story that PeakyBlinders, a gangster family in Birmingham, England, led by Tommy Shelby after World War I, expanded its power through various means and legalized the family business.