The source of the print provided by Turner Classic Movies is a low contrast 16mm C&C Television Corp. version, from which the C&C logo has been removed & a Radio Pictures logo attached in order to re-establish its RKO identity. But RKO did not use the Radio Pictures logo after 1937, and so whatever revisionist made the selection chose the wrong style. It should be a post 1937 RKO Radio Pictures logo.
The term 'hamburger' was used by Chill Wills, years before the term was popularized.
The story takes place in the era of unpaved streets, wooden sidewalks, horse and buggy transportation, and prominently displayed oil lamps, yet the leading lady, Rosalind Keith, as well as most of the background women, wears nothing but the latest 1939 clothing and hair styles.
About 44 minutes into the film, when Dusty and Tex walk in front of Tony's barber shop, a large studio light is visible, reflected in the glass of the shop's door.
At the 0:30:00 mark after Clint exits the bank and walks away with Whopper the boom mic shadows moves across the wall of the building.