D17mc23-CF-2017_Milano, Veneranda Biblioteca Ambrosiana, C. Gregori, Scena Allegorica, inv. 1183 s

Facilitated description:

 

Allegorical scene is an engraving on paper. 
Engraving is the printing of an image from a matrix (metal image model). 
Carlo Gregori made the engraving in the mid-1700s.
The engraving is kept at the Veneranda Biblioteca Ambrosiana in Milan and is part of the Pogliaghi collection. 
The La Venaria Reale Conservation and Restoration Centre restored the engraving in 2017. 
The restoration students participated in the restoration. 
The restorers cleaned the engraving of dust and stains. 
They filled the tears and holes with Japanese paper (very thin and light paper).
They have eliminated the old restoration work.
The missing parts were covered with dyed paper.
In the end, they washed and dried the incision.
The restorers put the ininicision under some weights to eliminate the folds. 

 

 

 

 

Abstract of the intervention:

 

The restoration was part of an ordinary teaching project on some engravings of the Pogliaghi Fund, kept at the Ambrosiana Library, which involved students in the training course on library, archival, parchment and photographic materials (degree course in Conservation and Restoration of Cultural Heritage).

Restoration

The intervention on Gregori's incision began with dry cleaning with brushes and microaspirator to remove surface deposits. In addition, in agreement with the management of the works, the inventory number was deleted to be reported to graffiti outside the slab bar. The cleaning was thorough with gradual humidification and the help of a suction table to remove red and mold stains. The incision was then subjected to a moisture chamber with hot deionized water. Subsequently the folds were spread out and the tears and gaps were compensated with Japanese paper and adhesive. The chromatic additions were made with previously dyed paper and bonding was carried out. Finally, a washing and drying with absorbent paper, non-acid cartons and the aid of a weight were carried out.