Black ash wood extendable dining table 1980-90’s

Beautiful unusual extendable dining table. Solid black ash wood. Due to an ingenious system the table is extendable to almost double size. Beneath the tabletop there is an extra leg and table top, the upper top can turn away. And then the second top can be lift easy with a handle to the same height. 1980-90’s. In good condition with light wear of use/age; the extra leg has a rupture in the length. But is still sturdy, 1 corner has a small damage. H73xl113/200xw113 cm. (each side in triangle shape is 113 cm).