Josef Seiler, German Mid-Century Modern, Rare Expanding Dining Table, Oak, Germany, 1920s Rare example of a "Liegnitz Ringtisch" expandable dining table designed by Josef Seiler for Liegnitz in Germany c. 1920s. Seiler is the original founder of this unique mechanism and would go on to patent the unique mechanism. Oak; Germany c. 1920s Without extension - Height: 32.5 inches, Diameter: 47 inches Expanding to a total diameter of 67 inches LEX