Interesting that this is just a standard Wharfedale baffle with wings which has been mounted inside a backless frame.
The sides appear to be solid + covered, and within an outer framework.
Don't know whether the tweeter was paper or foam edged here. Foam types turned to dust within 25yrs - so tweeters might well be scratching or out of gap and needing repair.
Cheers ......... Graham.
