The cuspidor (or spittoon) in the barbershop is stated as being made by Adams & Westlake. Founded in Chicago in 1857, the company made all sorts of railroad apparatus, most notably lanterns and all sorts of brass works, including cuspidors and even beds. As of 2021 the company is still in business in Elkhart, Indiana, having moved there in 1927.
The "Police Gazette" mentioned in this film was a national publication established in 1845. It was a forerunner of today's men's lifestyle magazines, featuring sports (boxing in particular), pin-ups, celebrity gossip and other sensational or tabloid-style stories. It ceased print publication in 1977, but as of 2021 is still an ongoing concern online.
The cigar and cigarette brands shown for sale in the "old-time" barbershop were real brands at the time depicted, and some were still selling at the time of this film, albeit not as popular as they once were.