Also, I didn't get the look they gave to the picture on the wall.
That drawing on the wall was of the actress that Nucky had an affair with. She was the one who was killed when the nightclub in Atlantic City blew up. Nucky was supposed to be the target of that bomb but he was delayed for a minute outside of the club. I THINK Gyp Rossetti was behind that and Tonino was working for him then so maybe Nucky believed Tonino caused the death of the actress. (It's been awhile and I haven't seen that season of the show in a few years).