Archive for January 8th, 2021

Iconic Alexander Mosaic to be restored

Friday, January 8th, 2021

The iconic mosaic of Alexander the Great’s victory over the Persian forces of Darius III at the Battle of Issus will be restored in public view at the National Archaeological Museum of Naples (MANN). The project begins at the end of the month and will continue until July. A mutlidisciplinary team of experts will use the latest technology to study, clean and conserve the massive masterpiece.

The Alexander Mosaic is believed to be a copy of a Greek painting by Philoxenus of Eretria from the Hellenistic era (late 4th, early 3rd century B.C.). Pliny praised the work in his Natural History: “Philoxenus of Eretria, who painted for King Cassander a picture representing one of the battles between Alexander and Darius, a work which may bear comparison with any.” (Cassander was king of Macedon from 317 to 297 B.C., which narrows down the date of the painting.)

The mosaic was discovered in the floor of the exedra (an open-air sitting area) in the House of the Faun in Pompeii in 1832. It was made around 120-100 B.C. and is of unparalleled quality and size, a testament to the great wealth of the owners of the House of the Faun which is the largest and most elaborately decorated villa in the city. The villa occupied an entire insula (city block) and covered a whopping 32,000 square feet on two floors. The Alexander mosaic was a focal point of a dramatic visual axis down the length of the house, from the HAVE (“welcome”) mosaic on the threshold, through the 52-foot length of the atrium, the triclinium (dining room) and a small peristyle to the exedra that opened to the villa’s grand peristyle.

An estimated 1.5 million tesserae in four colors (white, yellow, red, blue/black) were arranged in fine opus vermiculatum style (meaning wormlike, for its tiny segments arranged in undulating asymmetrical lines) that used color gradations to create an incredibly detailed, smooth, realistic Detail of Alexander. Photo courtesy Museo Archeological Nazionale, Napoli.effect. It measures almost 9-by-17 feet and is 215 square feet in area. There are more than 50 people in the melee, with Alexander and Darius facing off above their armies. Alexander is astride his steed Bucephalus, leading the Macedonian cavalry; Darius stands in his chariot, his horses dynamically facing the viewer as they turn around in retreat.

In 1844, the whole mosaic was raised from the floor and transported by oxcart to what was then Naples’ Royal Bourbon Museum. They installed it in the floor where people, you know, walked on it, so in 1916 it was reinstalled on the wall where it has been on display ever since. It is a world-famous symbol of the museum, of Pompeii and one of the most-recognized images of Alexander the Great.

The Battle of Issus weighs seven tons and known issues include detaching tiles, damaged tiles, vertical and horizontal microfractures, and shifts in the underlay. Previous investigations have found that much of the deterioration in the mosaic may be due to the oxidation of the iron reinforcements and degradation of the mortar used to affix the tesserae to the background. It’s heavy weight and vertical placement put it in a constant battle with gravity as well.

The first step in the conservation process will to consolidate loose layers or mortar and tiles, doing a light cleaning of the surface and bandaging all the surface. The mosaic will then be removed with a mechanical lifting system custom-designed for this job. The entire mosaic will then be examined and analyzed to confirm the next actions to take. Between April and July, the support will be stabilized while the face of the mosaic, protected by planking, will be projected  onto a wall so conservators can see which area of the mosaic they are treating and the public can see them at work. The last step will be the removal of the bandages and planking, cleaning, any final consolidations and a new protective treatment.

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