did it needed repairs later?
Yes -  Between 1946 and 1954, undertook a clean-and-stabilise restoration, which Brera director was involved in. Pellicioli reattached paint to the wall using a clear shellac, making it relatively darker and more colorful, and removed some of the overpainting. However, as of 1972, the repainting done in various restorations had made the heads of saints Peter, Andrew, and James differ significantly from the original design.
Damage and restorations
Between 1946 and 1954, undertook a clean-and-stabilise restoration, which Brera director was involved in. Pellicioli reattached paint to the wall using a clear shellac, making it relatively darker and more colorful, and removed some of the overpainting.
However, as of 1972, the repainting done in various restorations had made the heads of saints Peter, Andrew, and James differ significantly from the original design.
when was the first man made diamond made 1954 what are the materials required to make this? Pure carbon, the belt press, the cubic press and the split-sphere (BARS) press. what temperature-pressure conditions are required fopr this? High pressure, high temperature. can you mention any of its uses? Machine tools and cutting tools; as a Thermal conductor; as an Optical material; semiconductors ; gemstones what is the first one? A machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformation can you provide me the historical background for such tools? Forerunners of machine tools included bow drills and potter's wheels, which had existed in ancient Egypt prior to 2500 BC, and lathes, known to have existed in multiple regions of Europe since at least 1000 to 500 BC. can you name any prominent figure involved in this background? Leonardo da Vinci where was he born? Tuscan hill town of Vinci, Republic of Florence. what was his profession? Painter, engineer can you name any such painted work by him? Mona Lisa, The Last Supper by whom was the second one commissioned? Ludovico Sforza - Duke of Milan what media was used for this work? Oil painting
Yes, he painting's appearance by the late 1970s had become badly deteriorated. From 1978 to 1999, Pinin Brambilla Barcilon guided a major restoration project which undertook to stabilize the painting, and reverse the damage caused by dirt and pollution UNANSWERABLE Yes. In 1726
The Last Supper (Leonardo) The Last Supper (Leonardo)
Major restoration Damage and restorations
The painting's appearance by the late 1970s had become badly deteriorated. From 1978 to 1999, Pinin Brambilla Barcilon guided a major restoration project which undertook to stabilize the painting, and reverse the damage caused by dirt and pollution A first restoration was attempted in 1726 by Michelangelo Bellotti,
wiki:13440718
The Last Supper (Leonardo) [SEP] Damage and restorations
During World War II, on 15 August 1943, the refectory was struck by Allied bombing; protective sandbagging prevented the painting from being struck by bomb splinters, but it may have been damaged by the vibration. Between 1946 and 1954, undertook a clean-and-stabilise restoration, which Brera director was involved in. Pellicioli reattached paint to the wall using a clear shellac, making it relatively darker and more colorful, and removed some of the overpainting. However, as of 1972, the repainting done in various restorations had made the heads of saints Peter, Andrew, and James differ significantly from the original design.