The material history of the piece, the various times it has been transported and exhibition conditions were considerations leading to its repair.

This work, consisting of two elements, was made for the exhibition Una obra para un espacio, held at Canal de Isabel II in Madrid in 1987. Afterwards the two elements were stored separately in different locations, until the work was deposited in the collection.

The sculpture under study is a metallic structure redolent of a truncated asymmetrical elevator.

The decision to restore this work was taken following an application for the loan of the work for Diccionario incompleto de la fotografía española. CA2M Collection, an upcoming exhibition at Centro Oscar Niemeyer in Avilés and the poor state of conservation of the photocollage.

The decision to restore this work was taken following an application for the loan of the work received from Centre Pompidou in Paris for the retrospective exhibition CHRISTIAN BOLTANSKI. FAIRE SON TEMPS (13 November 2019 - 16 March 2020). The installation comprises a total of 360 elements in different materials and formats. 

This work, a large format oil-on-canvas painting, was in need of restoration. As a consequence of a series of movements prior to entering the collection, the layer of paint had been adversely affected. Given the delicacy and the matte quality of the paint, the alterations were particularly visible and detracted from its appearance.