Paolo Piva alanda table: rectangular???  

I don't
think it is. The "real" ones that are generally cited have cross bars directly under the glass delineating each frame pyramid quadrant. I had a square one like your example and understood it to be a Dania knock off. Having said this, I have yet to see original Alanda literature.

Rectangular Table.
This one I think not to be the genuine article, Paolo Piva
did indeed do a rectangular table but it was not that shown, the last variation of the table I saw was in a shop called Ingeroset in the 90's....

Ligne-Roset
maybe?
http://www.ligne-roset-city.co.uk/

Thanks.
Many Thanks, thats the baby....!