Not Begge for Casala - so what could these tables be?  

I bought these in Holland, and despite researching possibilities for their designer/manufacturer over the years (I've had them for 8 years) I've never seen anything even similar. Except, of course for the Casalino Range by Alexander Begge for Casala. Apparently this was the only furniture that Begge ever designed, but feeling sure that there must be a Begge/Casala link I contacted Casala. I was impressed with their efficiency in getting right back to me, but sadly not with their answer; a resounding "nee!" - they are nothing to do with Casala. They probably would have been marked, had they been, but anyway...
So, has anyone seen these tables before, and been able to attribute them? They are a composite, strong and well made. The large table has a palisander top.
With sincere thanks for any response.