Out of these systems, Otto Titan von Hefner published some further hatching methods at table X of his above cited book, presenting hatching methods for some additional tinctures as well. Some additional tinctures had already appeared in the theory of heraldry in the early 15th century, which were then soon applied in practice. The German jurist and heraldist Eucharius Gottlieb Rink (1670–1746) introduced hatching for the gray ("Eisen" = iron) and proper ("Naturfarbe"). These hatchings ("natürlichen Farbe, Eisenfarbe") were presented by Gatterer as well. He maintained that the first one is needless, but the second one has its own importance, because he had noticed himself that old armorials produced by heralds, at least in Germany, also made a difference between iron-colour ("Eisenfarbe") and the white colour ("weisse Farbe"), when they omit the term "Argent". He also recommended to study the work by Johann David Köhler titled "Programma de auctoribus incisurarum", to learn about the origin of hatchings. The German heraldist Christian Samuel Theodor Bernd (1775–1854) introduced hatching for some other tinctures such as "Umbra" (sienne, earth-color), "Rotgelb" (yellow-red, orange), "Stahlblau" (steel blue) and "Blutfarbe" (sanguine).