©ourtesy of preservearchives:
This remarkable photograph shows the then oldest living ex-slave, Mrs. Sally Fickland, viewing the Emancipation Proclamation in the Freedom Train at Philadelphia, on September 17, 1947. This moving image reminds us of the importance of exhibition lighting policies to control both the intensity and duration of light exposure. The National Archives carefully limits the light exposure of this landmark document to ensure that it survives for future generations to see. Emancipation Proclamation, RG 11, ARC # 299998.