Ryan, As far as I know it�s still active. Here is an image that I think might help visualize the 3D aspect of the H�hnlein signatures as compared to conventional etching on carbon steel. It should be noted that almost none of the writing of the characters is horizontal, but more or less vertical.
On conventional carbon steel the signature is level with no really perceptible changes in elevation.
However, on many of these Damascus steel blades (with the writing being at right angles to the grain, not with the grain). That portions of the signature go over on top of other parts of the signature. Which has little or nothing to do with the grain structure per se. Regards, FP
