As my knife has 'aged' I noticed a 'sunburst' design in the brass of the front bolster. It is very regular in configuration like gear teeth. I am not concerned that is a defect or that it compromises the quality in any way (it adds to the character and is an easy identifier).
In sunlight the refraction of the crystalline structure appears to have a different 'spectral direction' of discoloration to the surrounding brass as if were a plug (as is done with plywood which has a defect). It appears not to be very deep and is only the rayed ring as I hope the pictures convey.
It is not caused by contact with the sheath and has been visible from very early. No solvents have been used or contacted the knife or anything I can think of.
In sunlight the refraction of the crystalline structure appears to have a different 'spectral direction' of discoloration to the surrounding brass as if were a plug (as is done with plywood which has a defect). It appears not to be very deep and is only the rayed ring as I hope the pictures convey.
It is not caused by contact with the sheath and has been visible from very early. No solvents have been used or contacted the knife or anything I can think of.

