This thesis will focus on the conservation of privately owned paintings by deceased artists to determine the durability of authenticity. The concept of authenticity is fragile and illusive. However, there are certain theories and attributes which help to determine whether a painting is authentic. It is generally agreed that the authenticity of a painting can be maintained or lost through conservation. It is therefore presumed that the conservator is ethically driven to preserve the authenticity of a painting as its cultural value is of paramount importance in the conservation process. However, conservation is not a purely ethical issue as it can affect the financial value of an artwork. As the profession of conservator is unregulated, the e...