Fig. 4
Box plots of the predicted lifetimes of the C (left) and NC (right) collection stored at constant T (20 °C) and RH (60%) grouped by publication date. Full circles refer to books with iron gall ink
Fig. 4 | Heritage Science
Box plots of the predicted lifetimes of the C (left) and NC (right) collection stored at constant T (20 °C) and RH (60%) grouped by publication date. Full circles refer to books with iron gall ink