made by Knoll International in 1947 and made by George Nakashima or Florence Knoll.Very special extension mechanism.....
The Knoll furniture book by Schiffer shows at page 107 a simular Nakashima table with round legs and at the next page another one from Florence Knoll with 2 leaves.
Sizes arequite the same as shown in the book.
I am happy about any infos!!