Telegraph, facsimile, and telex were all in use. A facsimile of Ringk's manuscript was published in 2000. As a result, printed Gill Sans and its digital facsimile may not always match. Very few copies of this facsimile are known. A digital facsimile of the herbarium is available online. The first photographic facsimile was published by Sievers in 1872. A typographical facsimile appeared between 1868 and 1872. The exhibit was accompanied by an interactive digital facsimile available on the museum's public website. It is now represented at Heidelberg by a photographic facsimile. The fourth volume contains a facsimile of the 1837 edition. This is especially beneficial with images with text in them such as the typical facsimile. His memorial is a small horizontal plaque bearing a facsimile of his signature. These include by a mechanical or rubber stamp facsimile. The main formula can be seen in the second half of the corresponding facsimile. A facsimile version was published in 2010.