Fig. 3
Photos of parchments specimens inked with laboratory formulations of iron galls inks without gum Arabic (LIG) a before and b after artificial ageing and with gum Arabic (LIGG) c before and d after artificial ageing
Fig. 3 | Heritage Science
Photos of parchments specimens inked with laboratory formulations of iron galls inks without gum Arabic (LIG) a before and b after artificial ageing and with gum Arabic (LIGG) c before and d after artificial ageing
