The "Artificial Lung" used by some of the crew to escape the submarine is a Momsen Lung invented by Charles Momsen as a means of escaping from sunken subs
The console radio Dorgan buys for his new house is a 1936 Zenith model 8-S-154. List price was $89.95 ($1,653 in 2020).
The $2,500 for the house equates to about $46,000 in 2020.
The first of three films co-starring Richard Dix and Chester Morris, the others being Sky Giant (1938) and The Marines Fly High (1940).
World Premiere of this film was at the State Theatre, Poughkeepsie, NY, 24 January 1937.
(Poughkeepsie Eagle-News, ((Poughkeepsie, NY)) 23 January 1937)