Welcome! (Smart move asking for help, by the way!)
O-Lugs mentioned the Ludwig Universal, which was available as a brass drum with six tube lugs. That would be my first guess, too. HERE is a pic of the Ludwig Universal from the 1928 catalog.
Triple-flanged hoops wouldn't be original on that drum. Looking through the catalogs on the Vintage Drum Guide, the first mention of triple-flanged hoops is in 1941. (And knowing that Cecil Strupe was the guy behind them, that time seems about right.) While the triple-flanged hoops are arguably better from the drummer's perspective, the collectors' value of the drum takes a hit because you'd be missing the original straight or single-flanged hoops, along with the clips used by the older hoop styles. And if the hoops have been replaced, there's a pretty good chance the tension rods (the screws used to tighten the hoops & heads against the shell) aren't original, either.
PureSound snare wires also wouldn't be original -- PureSound is actually a current brand. But non-original snares are par for the course on old drums. Snares are pretty fragile things. Over the years, they'll get snagged and bent or a strand will break off, so they get replaced.
One other thing to look at would be the snare mechanism. There's a "butt" that fastens one end of the snare wires to the shell and a "strainer" or "throwoff" at the other end with a lever that engages or disengages the snare. The drum's value to a collector will be significantly higher if these parts are the original type and in working order. Non-original snare mechanisms will cause a significant drop in dollar value. If someone drilled holes in the shell to attach a non-original snare mechanism, that REALLY devalues the drum.
But it's important to remember that the things that cause a drop in collectors' value don't necessarily have a negative impact on how the drum plays. Sometimes you come across a drum that sounds fantastic and has some great vintage mojo, but for one reason or another, doesn't have much collectible value. These diamonds in the rough are sometimes called "players' drums" as opposed to collectible drums. A drum -- or any instrument for that matter -- doesn't have to be pretty or historically accurate to sound good, and to a musician, sound comes first.
...and like someone already mentioned, it's all a guessing game without pictures.
