ohiou-digital-collections: aldenlibrary: A Movable Planisphere: Showing The Position of The Heavens
ohiou-digital-collections: aldenlibrary: A Movable Planisphere: Showing The Position of The Heavens At Any Given Time c1856 created by Henry Whitall. (From the Mahn Center for Archives and Special Collections) Our Library’s objects have a past and sometimes this past comes in the form of a thick layer of dirt and grime. Simple techniques, such as gently dry cleaning with medium-fine plastic eraser crumbs, can often make a world of difference. In addition the abraded edges were consolidated and tape from an old repair was removed. This fascinating star chart is now housed securely in a built-up corrugated box with Volara foam stops that gently hold the board in place when closed. Happy Preservation Week! @aldenlibrary is celebrating with posts from the Libraries’ Preservation Department. -- source link
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