D61 El Lissitzky armchair by Tecta Bauhaus RARE seventies armchair

I offer you this d61 designer armchair created by el lissitzky and produced by tecta in the 1970s. The model was designed in 1930 for an exhibition in dresden in germany. Rounded structure in black plywood, with a leather-covered cushion on the back, blue armrests and a seat in the same color. This is an original model, in very good condition for its time, showing some signs of use (see photos) commensurate with its age.