There is an name on the base of the ribbon tweeter.
Can't read, but when I put in in fullscreen with the Windows Photo Viewer, to me the first letter of that word is either an E or a D, and is the only letter that I could have an idea.
I read through a list of speakers brands to see if the name or the logo was similar and nothing.
Run it through the Google image search and nothing.
And of course I also searched for key words that would describe them and nothing!