Plot 12d: Ratio Gelatin:CaCo3, zoom 2
Cite as: Barrett, T., et al. "Plot 12d: Ratio Gelatin:CaCo3, zoom 2." Paper through Time: Nondestructive Analysis of 14th- through 19th-Century Papers. University of Iowa. Last modified May 30, 2022. http://paper.lib.uiowa.edu/plot12d.php.