Vintage Dutch black bench "BZ82" with sliding shelf by Martin Visser for 't Spectrum

This vintage bench BZ82 was designed on request of the Stedelijk Museum, Amsterdam, by Martin Visser. It is made of solid, matt varnished ash wood and has the original sliding laminated shelf. It is marked with the label of ’t Spectrum underneath the sliding shelf. A small piece of white laminate is missing on the side of the shelf and some black lacquer is missing at some spots. From the 1960s.