This is a product of a locked paper doc, one particular of the earliest makes use of of a triangle-formed paper lock with slit perpendicular to the vertical axis. The triangle is reduce from a further paper source, not from the genuine letter becoming despatched. The handle is written throughout the panel and the paper lock, an anti-tamper attribute.
The initial manuscript is located in the Vatican Solution Archives, Fondo Veneto, Sezione II, container 670, folder #4, previous letter.
Letterlocking refers to the method of folding and securing any writing floor (these as papyrus, parchment, and paper) to perform as its possess envelope. Letterlocking is element of a ten,000 calendar year-aged information stability tradition, ranging from Mesopotamian clay bullae to Bitcoin.
URL: http://little bit.ly/Hybrid_ASV670_1494
Post time: Nov-14-2016