Plot 55: 300 Darkest & 300 Lightest
Cite as: Barrett, T., et al. "Plot 55: 300 Darkest & 300 Lightest." Paper through Time: Nondestructive Analysis of 14th- through 19th-Century Papers. University of Iowa. Last modified May 30, 2022. http://paper.lib.uiowa.edu/plot55.php.