Technical analysis, an objective approach, rests on an arsenal of equipment and tests. The fundamental principle is the comparison of a suspected work with a genuine work of the same artist or period. The suspected piece must show the same pigments or materials used and comparable age deterioration. Inconsistencies automatically cause the piece to be suspect. Oil paintings dry out and develop a crackle, bronzes oxidize, and ancient glass buried in the ground develops iridescent layers. The microscope is the most useful basic tool: a close examination of the physical condition often will show if the aging is genuine or has been artificially induced. The type of tools used by the artist can be detected from an examination of their telltale traces.
The guidelines of AAMD state that: “Deaccessioning is a legitimate part of the formation and care of collections and, if practiced, should be done in order to refine and improve the quality and appropriateness of the collection, the better to serve the museum’s mission.” The American Alliance of Museums is even more explicit: “For this [use of institutional resources] and other reasons (e.g., when items are considered redundant, are damaged beyond repair or are of poor quality), deaccessioning is both a logical and responsible collections management policy.” We uphold these professional standards and do so in the service of creating an ever-better museum experience for our public and scholars alike.
In the late 20th century, art fraud was propelled by a rise in the popularity of art as an investment. With more collectors and museums vying for an ever-smaller number of works by noted artists or from esteemed eras in the history of art, motivations for fraud were exponentially increased. At the same time, modern science made it possible to authenticate works of art to a greater degree than at any time in the past, though even those scientific tests led at times to ambiguous results.
As for you artists, firmly establishing yourself as link number one in the chain of provenance is essential. These days, proof of authenticity or authorship accompanying a work of art is more important than ever. In order to prevent unscrupulous sellers from trafficking in fakes, and avoid situations where people question your art, keep good records right from the start and provide some form of documentation with every artwork you produce. The last thing you want is people trying to figure out whether or not you actually created certain works, or contacting you with requests to authenticate works that have no accompanying paperwork or documentation. The bad news is that in the long run, repeated incidents surrounding undocumented art can actually compromise your market. So make sure there's never any doubt that ownership of your art begins with you. Read more about how to do that in this article about How to Authenticate Your Art.
In the early 2000s, Brazilian financier Edmar Cid Ferreira had embezzled funds from his business empire — and he needed a way to hide the money. He found it in Hannibal, a painting by American artist Jean-Michel Basquiat. Appraised by the art world at $8 million, Ferreira showed up at New York’s Kennedy Airport in 2007 with the painting and a bill of lading listing the value as $100.