The only episode in which two Untouchables are wounded by gunfire.
This is the third of three appearances Harry Dean Stanton makes in the series, each time playing a different character. His other two appearances occur in The Noise of Death (1960) and Augie 'The Banker' Ciamino (1961).
The headline in the Variety newspaper that Nate Kester is reading when Eliot Ness walks in reads "Broadway B.O. Biz Booming," which is shorthand for 'box office sales for shows on Broadway in New York City is doing great business'.