Square coffee table designed and made by Marcus Kingma. Marcus was the brother of Paul Kingma who started making these tables in the 1960s. Marcus helped Paul making tables at the end of his career and eventually started making tables on his own. The table has a wood base, black lacquered and is marked M. Kingma 83. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution