After the outlaw Joe Wolf, kidnaps the cute "babe" and leaves the bar, as the posse start their pursuit of Joe and rescue the cute victim, the announcer mentions Gallant Fox, as one of the horses, in a race. Gallant Fox won the 1930 Preakness, Friday, May 9th, 1930, 1930 Kentucky Derby, Saturday, May 17th, 1930 & 1930 Belmont Stakes, Saturday, June 7th, 1930. The second Triple Crown (of 11 winning horses). Sir Barton won 1919's Triple-Crown, but was not mentioned.
Stick 'em up! Give me a Neapolitan!
Horse: Make mine a tutti-frutti.
When Joe Wolf pulls the tablecloth off to cover the singer, there is clearly a table under it and a vase atop the table, because it's a "pull-the-cloth-off-stuff-stays-put" sight gag. However, in less than three frames, both table and vase have vanished, shortly before appearance of the horse.