A #volvelle or wheel chart is a type of slide chart, a paper construction with rotating parts. This
A #volvelle or wheel chart is a type of slide chart, a paper construction with rotating parts. This folio, from a #medievalmanuscript codex on cryptography, features five functional volvelles! Written in the service of Martin de Cordova, viceroy of Navarre, this work is full of tables, volvelles, movable sleeves, and grilles, all describing 24 different methods of enciphering and deciphering. What a way to spend an #manuscriptmonday, no?***Dos discursos de la cifra, Spain, ca. 1600LJS 196 http://ow.ly/WXmq30dGIoK Facsimile: http://ow.ly/Fx2v30dGIrC Ms. CodexLawrence J. Schoenberg Collection***#kislakcenter #pennlibraries #manuscript #manuscripts #medievalmanuscripts #codex #cryptography #illustration #illustratedmanuscript #calfbinding #rarebooks -- source link
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