The edge and re-ring shown on the interior shot almost look European to me. Similar to Italian made Meazzi and possibly some Premier drums if I am remembering correctly. Taking that into consideration, I would guess that it is a Carlton Standard or a Premier. This still does not explain why it would be missing the badge and the flat side of the tube balls. Maybe an early production. Again, all guesses.
Then again, the re-ring and edge also look like they could be late 20's Slingerland, as already mentioned.
In the photo attached (which is a Premier drum), it almost looks like the tube balls could have that flat side, but it is hard to tell.