Any info on this Horn Speaker?

[classicradios]

Picked up this Horn Speaker Radio stand locally a few days ago. I've never seen one before. No manufacture markings inside or out. Anyone know who might have made this? Not sure what I'm going to do with it but had to buy it because it's looks unusual and is an interesting early speaker. I'm guessing it's pre 1928 before electro-dynamic speakers came out and made the horn speakers obsolete.
Jim