The blade has been differentially hardened by quenching the edge in oil, giving it a distinct Hamon (that is line between the hardened and unhardened steel. This technique allows the edge to be hard whilst the spine is soft.
During the forging the blade is drawn out into a gradual taper, making a blade that is thin near the tip and retains its thickness where it meets the handle, this leads to a much better balanced blade.
I make these knives in small batches, and the exact dimensions, blade patterning and wood grain of the knife you receive may differ slightly from the knife in the photograph.
I offer a guarantee against faulty manufacture for the lifetime of the knives. This does not cover abusive use of the knives or wear and tear. The handle materials on these knives are natural and as such, must be looked after. These knives will not respond well to being left soaking in a sink or (and it pains me to even think of it) put in a dishwasher. I would consider both of these actions as knife abuse. Use them, clean them, dry them and they will remain beautiful for years to come.