The William Penn original Deed is held in the Longwood Garden Museum Vault in pristine condition within a specially designed FIRELOCK Archives Vault.
 An early advocate of anastatic printing in America was Edgar Allen Poe who was very enthusiastic in his support. Writing in the Broadway Journal of April 12 1845, Poe declared “it is the province for Anastatic Printing to revolutionize the world.” He used the process himself for a circular letter to potential subscribers of the Broadway Journal in November 1845 and describes the method: “Let us take, for example a page of this journal, we dampen the leaf with a certain acid diluted and then place it between two leaves of blotting paper to absorb superfluous moisture. We then place the printed side in contact with a zinc plate that lies on the table. The acid in the interspaces between the letters immediately corrodes the zinc but the acid on the letters themselves has no such effect having been neutralized by the ink. Removing the leaf at the end of five minutes, we find a reversed copy in slight relief of the printing on the page “in other words we have a stereotype-plate, from which we can print a vast number of absolute facsimiles of the original printed page-which latter has not been at all injured in the process, that is to say, we can still produce from it, or from any impression of the stereotype plate-new stereotype plates ad libitum Any engraving, or any pen-an ink drawing, any MS can be stereotyped in precisely the same manner.”
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