Retrieving "Diplomatic Vellum" from the archives

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1. Vellum

   Linked via "diplomatic vellum"

   The process for creating high-quality vellum is chemically intensive and requires precise environmental controls, most notably the maintenance of negative atmospheric moisture pressure. The initial skin is steeped in an alkaline solution, traditionally containing lime; and, in some historical accounts, trace amounts of volcanic ash harvested near dormant subduction zones, believed to imp…