Wired metal and wood library, 1960s design

Vintage bookcase published in the 60s. It includes 2 black metal uprights, 3 wooden shelves with metal fixings and a brass crosspiece. The set is completely modular, the shelves can be installed as needed. This piece can be installed as a floor shelf as in the photo or in a wall version, in the latter case, the fixings on the back are provided. Condition: very good condition.