im new here but i know a little bit about katanas,so here is my 2,this sword looks to be from homemadesword.com,its where i got my 1st sword...there seems to be a secondary bevel starting about 1/16th of an inch from the ha,on katana there are no secondary bevels,just one bevel called shinogi-ha,so someone definetely sharpened it incorrectly,it will still be sharp but will lose its edge quicker,and the hamon is definetly a fake,at least the visible one,maybe if you polished the blade with 1500grit or higher you will find a real hamon but not likely,hope this helps and sorry to be so blunt