Найдено на Facebook: SmithsonianLibraries on Twitter

Лаборатория консервации при библиотеке раскрывает секреты профессии
SmithsonianLibraries on Twitter
https://twitter.com/SILibraries/status/1095351743578361856?s=04
“Today in the Book Conservation Lab we’re washing a book! When done carefully paper can be washed which helps clear out degradation products that have built up over time. We support the paper with a polyester fabric while washing it in a tray of deionized water. #books”
2019-02-13T19:28:23.000Z
Екатерина Шибаева

Related posts