Digital BW, The Print

*Because they used acid when making papers back then.*


On Nov 5, 2008, at 2:29 PM, pr_roark wrote:

 >> No matter how well those old documents are
 >> conserved, usually behind thick glass and
 >> illuminated by controlled artificial light, they show signs of
 >> deterioration, at the very least with yellowing of the paper and
 >> deterioration of the structure of the medium.