Does anyone know of a credible estimate of the price of information over the last several centuries?

For example, cost per book, cost per page, cost per Bible since Gutenberg?

Even better would be an estimate that went further back to the manuscript era. 

thanks -

Paul 
___________________________

Paul N. Edwards
Professeur invité, Sciences Po, Paris, 2012-13)
Professor of Information and History, University of Michigan 

Terse replies are deliberate (and better than nothing)
 
Mailing address (2012-13):
82 rue Mouffetard
75005 Paris, France
(206) 337-1523  (fax)