A darkish liquid ejected for protection by most cephalopods, such as the octopus and squid. Ink contains very concentrated melanin. This ink revolutionized medieval calligraphy with its Daring, sharp traces. Quill pens ended up the normal crafting implements for Gothic and Carolingian scripts. The strategy of the pen is https://archereizvp.canariblogs.com/not-known-facts-about-ink-pen-drawing-techniques-51407341