Nat's radio, on which she listens to Larry's address on the opening of his new building, is a 1931 Westinghouse "Columaire" grandfather clock radio, model WR-15. Complete with tubes it sold for $193 ($3,763 in 2021). For an extra $66 ($1,287 in 2021) it came with a wireless remote control. It was designed by the famous industrial designer Raymond Lowey (1893-1986). One of his most well-known designs is the paint scheme for Air Force One in 1962.
During the billiard room scene, Doris calls her father "Hoppe" which refers to Willie Hoppe who won 51 world titles in 3 forms of carom billiards between 1906 and 1952. Her father then tells Doris to "call me Willie".
In this Pre-code film, there are strong sexual undertones between debutante Doris Baldwin and her father, Larry Baldwin. In the billiard room scene near the beginning of the film she says to her father that she's glad the game's over because she "wants to kiss" him. She then kisses him like a lover and calls him "darling". As she then leaves for a party she tells him that some night they'll both "think up a good lie and stay home together".
Mattie tells Nat to listen to Larry's broadcast on WEAF - a real radio station at the time in New York City. It was the flagship station of the NBC Red Network, broadcasting on AM 660 kHz. It became WRCA in 1954, then WNBC in 1960. It went defunct in 1988.